board: E-OCR-CTC-SIMPLETEXT-1 + E-OCR-P6-GOLDEN-1 — the CTC correction + P6 golden suite shipped

[AdaWorldAPI]

What

Board-only (two prepended EPIPHANIES entries; companion to tesseract-rs #20):

• E-OCR-CTC-SIMPLETEXT-1 — the arc's biggest correctness finding: every recognizer text anchor was decoded with simple_text=true, but eng.lstm's O1c111 head is NT_SOFTMAX = softmax activation with CTC loss → real SimpleTextOutput() is false. Both sides of every parity diff carried the same wrong flag (unfalsifiable on noise fixtures); the first rendered corpus page exposed it as systematic repeats. Entry carries the full 9-stage live-bisect method (gdb pix dump, argmax fingerprint, production beam params from registers), the fix (Network::simple_text_output() derived from the tree), and the 8/8 re-anchor. Transferable lessons: decode-semantics bugs need TEXT falsifiers; oracle config comments are claims, not facts.
• E-OCR-P6-GOLDEN-1 — P6 shipped (hermetic corpus, tiered harness with the never-blur discipline operationalized, CER report: pages mean 0.0153 vs gt, perf report, CI wiring). The pdf-to-text-ocr-v1 plan is complete through P6. Meta-finding: the corpus paid for itself on first contact.

(The branch also carries the earlier E-OCR-LINEFEED-1 entry if #661 merged without it — all three entries are append-only prepends to the same file.)

🤖 Generated with Claude Code

https://claude.ai/code/session_016b33swuXE23hKtqxsHu9p1

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