STEM and Digital-Twin Fabrication

20 of 28 capability source symbols found|2 of them authored stronger-claims|8 open|coverage 714/1000|adoption 9 full / 11 partial

Evidence profile — what the gaps on this board actually are

Measured by nx_swcompare_evidence, read back by nx_evprofile_lib. Every figure is a count with its denominator — there is deliberately no score, no grade and no percentage anywhere in this band, because a stored scalar is a field a seat can edit and a counted partition is not.

evidence|grounded 20/20|unsupported 0|gates green 1/1|proven able to fail 1/1|never bitten 0|green at 0/0 0|open gaps 8|of them unnamed 0|of them proof withheld 0|flips ready 0

proven able to fail counts the gates that have a RECORDED RED — nx_gate_bite mutated the gate subject, rebuilt it, watched the gate go red, and that record is inside the shared TTL. never bitten is its complement over the same denominator: those gates ran and were green, and nothing has ever shown them able to detect anything, so their green is a statement about this run and not about the gate. green at 0/0 is a separate and much weaker observation — the gate printed GREEN on a zero denominator, so its own tooth counter says it examined nothing. A gate can be green, non-zero, and still never bitten; that is the common case and it is now visible instead of implied.

partition: grounded + unsupported = 20 vs present 20 · named + unnamed + withheld = 8 vs open 8 · both reconcile

liar-kill conj=GPQN · all four conjuncts held

graded document: BUILDROOT tree, 7321 bytes · gates map: PRIMARY · stamped 3d 1h ago · source ../knowledge/status/evstamp_stem.verdict

Ranking source binding: STALE_OR_INVALID_BINDING. Recorded priorities require current acceptance evidence and resource checks before execution.

Recorded ranking withheld

Retained ranking is not bound to the current plan and matrix: STALE_OR_INVALID_BINDING. Historical data remains retained. Refresh the ranking after resolving the input differences. Latest execution outcome is unverified.

Declared roadmap — contract, acceptance, executor, effort

Milestones

Milestones

Rung dossiers — every record that bears on a rung, in one place

dossiers=8 cells_joined=8 no_matrix_row=0 (sum 8) gates_recorded=0 gates_unrecorded=0 no_gate_declared=8 (sum 8 of cells_joined) evgates=UNSTAMPED

Position map — centrality and distinctiveness

The four-quadrant map the field uses for brand strategy (Dawar and Bagga, HBR June 2015), re-derived from this matrix on every publish. Centrality is the share of the category's feature mass a player covers, each feature weighted by how many hold it; distinctiveness is the average lead over each rival on the rows the player holds; breadth is the depth-weighted share of the whole matrix (the bubble); depth is how deeply the rows held are held; momentum is the day-over-day move off the spine (green rising, red falling, grey until day two); the dashed path runs first day → previous day → today. Dividers are the category means. Axes are fitted to the field of play, so read the tick numerals, not the frame. Rival marks are documented presence, so a rival's position reads the record, never its quality. The picture grades its own readability below; the table beside it is the same data for a screen reader or a second method.

players 5|matrix rows 28|feature mass 46|centrality mean 399|distinctiveness mean 594|axes 5|spine days 10 (shown 10)|rows written today 0|readability defects 2D 0 cube 0|spine knowledge/status/cdmap/stem.spine

Capability matrix — measured against source

◉ authored stronger claim; source present● present◐ partial○ absent? unassessed; excluded from relative comparison · click any capability for its evidence

Peer cell coverage: authored assessed 112, unassessed 0. Authored assessments are not verified outcomes.

No capabilities match this filter or search.

Release history and work log

Person · product · place — not yet measured for this domain

The field — discovered, not chosen

Rows written by nx_field_discover from stem.seeds: the industry's own lists (Wikipedia wikitext, GitHub topics, awesome lists) read mechanically, every candidate counted across seeds. The matrix columns above are a SEAT'S pick; this band is the population they were picked from, and the stats line measures one against the other. A rival here is a lead, never a verdict — it earns a column when its capabilities are read and pinned.

field candidates 4|shown 4 of 4|matrix columns in the field 4 of 4|discovered rivals with no column 0|malformed rows 0 (counted, never rendered)|read-capped 0

Exclusive and shared capabilities

This board grades 27 capabilities: 23 exclusive to it and 4 shared with other boards. Shared rows on this page: 4 = home here 0 + home elsewhere 0 + ambiguous 0 + undecided 4 + refused 0 (partition 4); undecided = unmapped 0 + unproven 4 + unevidenced 0; homonyms 0; since the previous census: new 0, resolved 0. Census FRESH age_s=6118.

Gaps from the record — what the estate does that no board carries

The record census (nx_goalmap record) reads the invoked-tool population and every plan queue row and files each organ or directive that NO matrix, plan or gates row names. A row here is a callout the boards missed: adjudicate it onto a board or declare it infrastructure. Census state STALE (age 1395223 s), sources read 4 of 7 declared — a BLIND census is a FLOOR: unread sources can only add rows.

rows shown 0|this board's directives 0|estate-wide un-boarded organs 452 (listed in full on /compare/ecosystem)|census rows 639|malformed 0 (counted, never rendered)

References

1. [wolfram-docs] Wolfram Research. Wolfram Language and System Documentation Center (reference.wolfram.com) -- Integrate, Solve, number theory and the full symbolic stack. Accessed August 2026. publisher · read in our library knowledge/fetched/cmp_stem_wolfram-docs.html · pin h2ddd3b6d60f0f714fc5515a7ad4ecf4c29d567599952e9ac655e5a15c25b0eb7 · accessed 2026-08-18 · vendor-docGrounds: The Wolfram Language column (c1) on the Math rows -- Math: symbolic calculus and integration, Math: equation solving, Math: number theory -- coded Best from Wolfram's own documented Integrate, Solve and number-theory coverage; the note's DLMF-breadth-about-30-percent is the honest distance our nx_calc_integrate has to close.
2. [fusion360-docs] Autodesk. Autodesk Fusion -- integrated cloud-based 3D CAD, CAM, CAE and PCB platform (product overview page). Accessed August 2026; the vendor page answers 403 to non-browser fetchers, so no mirror is claimed -- URL and title confirmed by an independent search-index read. publisher · accessed 2026-08-18 · vendor-docGrounds: The Fusion 360 column (c2): Fab-CAD: kernel deterministic no-float CSG and fillets (Fusion B-rep is the rival our SDF CSG exceed is measured against), Fab-CAD: interactive GUI editor and constraint solver (Fusion Best, the number-one behind axis) and Twin-Multiphysics: FEA solver warp and stress before build (Fusion simulation beside Ansys).
3. [kicad-docs] KiCad EDA. KiCad Documentation (docs.kicad.org): schematic editor, PCB editor, Gerber and Excellon plotting, design-rule check and interactive router. Accessed August 2026. publisher · read in our library knowledge/fetched/cmp_stem_kicad-docs.html · pin h7874bccd50f7524671d4582189cb26e0888c8e6ec8192e0f1ccfb2e7a063d8c2 · accessed 2026-08-18 · vendor-docGrounds: The KiCad column (c3): Fab-PCB: Gerber, Excellon, DRC, autoroute, CAM (KiCad coded Yes, our manufacturable package is graded against its plot and DRC outputs) and Twin-PCB: board digital twin electrical (KiCad SPICE with ngspice is the named rival for the next SPICE-oracle rung).
4. [verilator] Snyder, W. et al. Verilator -- the open-source SystemVerilog simulator that compiles HDL to a cycle-accurate C++ or SystemC model; repository README plus the Verilator 5.x User's Guide (verilator.org/guide/latest). Accessed August 2026. publisher · read in our library knowledge/fetched/cmp_stem_verilator-docs.html · pin h13ca8c49218287cc006199c3b83770cfbc5dc75b36ff50b41ee5736305d027d3 · accessed 2026-08-18 · vendor-docGrounds: Half of the Verilator + QEMU column (c4): Twin-Silicon: gate-level nxgate netlist simulator (Verilator gate sim coded Best; our sovereign netlist simulator's functional-equivalence proof is graded against it) and Fab-Silicon: sovereign synthesis to nxgate netlist.
5. [qemu-docs] QEMU Project. QEMU documentation (system emulation, TCG, RISC-V machine targets). Accessed August 2026. publisher · read in our library knowledge/fetched/cmp_stem_qemu-docs.html · pin hcd28374cfd9b1c35b6850e800a27ee831f401b0c5e35b6732634ba284c903040 · accessed 2026-08-18 · vendor-docGrounds: The other half of c4: Twin-Silicon: RV64 SoC sim mmu uart virtio kernel-boot (QEMU coded Best) and Twin-Silicon: validated vs QEMU oracle difftest and fuzz -- QEMU is the golden model nx_rv64_qemu_oracle differential-tests against, which is what lets the core be tested BEFORE the ULX3S is bought.
6. [riscv-isa-spec] RISC-V International. The RISC-V Instruction Set Manual, Volume I Unprivileged ISA and Volume II Privileged Architecture -- ratified specifications page. Accessed August 2026. publisher · read in our library knowledge/fetched/cmp_stem_riscv-isa-spec.html · pin h33461bf0413542c87c32a430032d8dacfb57f8a454f8c3c3aaa925e9b7e6d15a · accessed 2026-08-18 · published-standardGrounds: The contract every Twin-Silicon row is measured against: the RV64 SoC sim, the QEMU-oracle difftest and the RV64IM decoder emitted by Fab-Silicon: sovereign synthesis to nxgate netlist all implement this ISA -- conformance to it is what makes QEMU a valid oracle rather than just another simulator.
7. [nist-ciaaw-atomic-weights] NIST Physical Measurement Laboratory. Atomic Weights and Isotopic Compositions with Relative Atomic Masses (Coursey, Schwab, Tsai, Dragoset), with the IUPAC CIAAW Standard Atomic Weights table (ciaaw.org/atomic-weights.htm, fetched and mirrored the same day as knowledge/fetched/cmp_stem_ciaaw-atomic-weights.html). Accessed August 2026. publisher · read in our library knowledge/fetched/cmp_stem_nist-atomic-weights.html · pin h65f4063b547aa1dab9aa71e31cb622be6d68788a03fa77c07f5efd5bfbd9e697 · accessed 2026-08-18 · published-standardGrounds: Chem: periodic, molecule graph, SMILES, isotopes -- the isotopic masses and abundances nx_chem_periodic carries for Z1-118 were verified against the NIST table and the standard atomic weights against CIAAW, which is exactly the note's isotopes NIST and CIAAW verified claim.
8. [gotoh1982] Gotoh, O. An improved algorithm for matching biological sequences. Journal of Molecular Biology 162(3):705-708, 1982. PMID 7166760, doi 10.1016/0022-2836(82)90398-9. Confirmed by search-index read; the PubMed page serves a JS bot-challenge stub to non-browser fetchers, so no mirror is claimed. publisher · accessed 2026-08-18 · published-paperGrounds: Bio: sequence alignment Gotoh and FASTQ to VCF -- the affine-gap O(mn) alignment nx_align_affine implements is this paper's algorithm, the Smith-Waterman-Gotoh form that BWA-class aligners (the row's named rivals) descend from.
9. [brion2022-caxton] Brion, D.A.J., Pattinson, S.W. Generalisable 3D printing error detection and correction via multi-head neural networks. Nature Communications 13, 4654 (2022); the CAXTON system and dataset (1.2 million labelled extrusion images from 192 parts). Open-access copy at PMC9378646. publisher · read in our library knowledge/fetched/cmp_stem_brion2022-caxton.html · pin hdcaacc706ef6d0250a47641d688a8f1775843ea28aa38d8399e6ee70a25bb68e · accessed 2026-08-18 · published-paperGrounds: Twin-Print: validated vs real outcome CAXTON-class -- the honest-gap row names this work as the bar: a print twin earns the exceed label only when it predicts a REAL failure of the kind CAXTON detects and corrects on camera, which is what nx_print_sim_validate must be measured against before Twin-Print: 3D-print sim can claim more than sim-proven.