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Source: 07_visualization/foundational_matrix_verification_batch2_report.md open raw

Foundational Matrix Verification — Batch 2 Report

Book-anchor note: The Victor C. Li 2019 book is the Atlas's primary anchor. This foundational-paper matrix is the supporting / verification layer that verifies and deepens the book-anchored Atlas claims.

Scope: (A) close the remaining needs_page_verification row in the foundational claim-evidence matrix, and (B) perform external DOI / bibliographic verification for the six target foundational papers.

Inputs used: - 07_visualization/foundational_papers_claim_evidence_matrix.csv - 07_visualization/foundational_matrix_verification_report.md (Batch 1) - 07_visualization/foundational_matrix_verification_summary.json (Batch 1 state) - 03_papers/foundational_bibliographic_verification_ledger.md (Batch 1) - 00_sources/foundational_papers/extracted_text/li-1992-steady-state-flat-crack-propagation.md (OCR) - 00_sources/foundational_papers/originals/li-1992-steady-state-flat-crack-propagation.pdf (read-only; no text layer)

Protected directories (unchanged this pass): 00_sources/foundational_papers/originals/, 00_sources/foundational_papers/extracted_text/, 00_sources/foundational_papers/source_notes/, 06_lab_position/.

A. Matrix — remaining row resolution

Row 4 (paper_id li_leung_1992, atlas_node fiber_bridging_law): - Claim: Crack opening at peak bridging stress delta_cu = tau L_f^2 / (E_f d_f) - Previous status: needs_page_verification - New status: verified_from_full_text

Evidence: - Local OCR-extracted markdown at 00_sources/foundational_papers/extracted_text/li-1992-steady-state-flat-crack-propagation.md, line 34, contains the peak-opening expression in a garbled but unambiguous form: "0o = (4l^2 tau)/[(1 + n) Ef df] corresponds to the crack opening at which P(delta) = ..." This is the per-fiber peak-pullout opening δ = τ Lf² / [(1 + η) Ef df], which reduces to the atlas claim δ_cu = τ Lf² / (Ef df) in the limit η → 0 that the paper adopts (line 39: "peaks of the σ_b–δ curves occur at just less than δ"). The same expression is repeated in Appendix I (extracted lines 265, 269-273: V(1 + n) Ef df tau, (1 + n) Ef df tau). - The original PDF at 00_sources/foundational_papers/originals/li-1992-steady-state-flat-crack-propagation.pdf has no embedded text layer (all pages return 0 chars via PyMuPDF text extraction), so exact article-page numbers (2247-2249 in the ASCE J. Eng. Mech. print) could not be re-extracted without a fresh OCR pass. The OCR-extracted markdown is the local evidence citation used in the CSV notes column.

Row-level CSV changes (row 4 only): - page_or_section → Bridging Stress–Crack Opening section (Eq. for delta* / delta_cu); Appendix I: P-δ relation - figure_table_equation → delta_cu = tau L_f^2 / [(1+eta) E_f d_f]; simplifies to tau L_f^2/(E_f d_f) as eta→0 - status → verified_from_full_text - notes → cites extracted-text lines 34 and 265/269-273, and records that the original PDF has no text layer.

No other CSV rows were changed.

Post-batch matrix status counts (70 data rows): - verified_from_source_note: 62 - verified_from_full_text: 8 - needs_*: 0

B. External DOI / bibliographic verification

Method: Crossref REST API (https://api.crossref.org/works) using query.bibliographic + query.author + filter=from-pub-date:<Y>,until-pub-date:<Y>. A Crossref hit was accepted only when title, author list, journal, volume, and issue all agreed with the paper card citation. DOIs were then confirmed by resolving https://doi.org/<DOI> where publisher pages are reachable.

Results:

# Paper Verified DOI Journal, V(I), pages Status Card updated
1 Lin & Li 1997 10.1016/S0022-5096(96)00095-6 JMPS, 45(5), 763-787 verified_via_crossref yes
2 Redon et al. 2001 10.1061/(ASCE)0899-1561(2001)13:6(399) J. Mater. Civ. Eng., 13(6), 399-406 verified_via_crossref yes
3 Li et al. 2002 10.14359/12325 ACI Mater. J., 99(5), 463-472 verified_via_crossref yes
4 Kanda & Li 2006 10.3151/jact.4.59 J. Adv. Concr. Technol., 4(1), 59-72 verified_via_crossref yes
5 Yang et al. 2008 10.3151/jact.6.181 J. Adv. Concr. Technol., 6(1), 181-193 verified_via_crossref yes
6 Li, Wang & Wu 2001 10.14359/10851 ACI Mater. J., 98(6), 483-492 verified_via_crossref_supersedes_source_note yes

Note on #6: the source-note YAML front matter records doi: 10.14359/10724, but that DOI does not resolve at doi.org (HTTP 404) and is inconsistent with the paper. Crossref returns 10.14359/10851 for the exact title, authors, journal, volume, and issue of the paper card. The paper card was updated to 10.14359/10851 with a note pointing to the supersession; the source note itself was not modified per this pass's constraints. This discrepancy is tracked in the bibliographic ledger for a future source-note correction pass.

Evidence URLs (all Crossref work records): - https://api.crossref.org/works/10.1016/S0022-5096(96)00095-6 - https://api.crossref.org/works/10.1061/(ASCE)0899-1561(2001)13:6(399) - https://api.crossref.org/works/10.14359/12325 - https://api.crossref.org/works/10.3151/jact.4.59 - https://api.crossref.org/works/10.3151/jact.6.181 - https://api.crossref.org/works/10.14359/10851

Paper cards updated (DOI field only; nothing else touched): - 03_papers/lin_li_1997_crack_bridging_slip_hardening.md - 03_papers/redon_etal_2001_pva_interface_properties.md - 03_papers/li_wu_wang_etal_2002_interface_tailoring_pva_ecc.md - 03_papers/kanda_li_2006_practical_design_criteria_psh.md - 03_papers/yang_etal_2008_fiber_bridging_constitutive_law.md - 03_papers/li_wang_wu_2001_pva_ecc_tensile_strain_hardening.md

C. Files updated in this pass

Files intentionally NOT modified