Pith Number

pith:ECOSFZKM

pith:2020:ECOSFZKMOGYGMQ6APQ4MNLKDOH

not attested not anchored not stored refs pending

Tactic Learning and Proving for the Coq Proof Assistant

Herman Geuvers, Josef Urban, Lasse Blaauwbroek

arxiv:2003.09140 v1 · 2020-03-20 · cs.AI · cs.LO

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ECOSFZKMOGYGMQ6APQ4MNLKDOH}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-07-05T01:23:58.091458Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

209d22e54c71b06643c07c38c6ad4371ff083d710336ae4b3a97bf0024d47876

Aliases

arxiv: 2003.09140 · arxiv_version: 2003.09140v1 · doi: 10.48550/arxiv.2003.09140 · pith_short_12: ECOSFZKMOGYG · pith_short_16: ECOSFZKMOGYGMQ6A · pith_short_8: ECOSFZKM

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/ECOSFZKMOGYGMQ6APQ4MNLKDOH \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 209d22e54c71b06643c07c38c6ad4371ff083d710336ae4b3a97bf0024d47876

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5a25feca8e9d187028058c501b4255889c30335f7fa9c83367a0b8114b388c17",
    "cross_cats_sorted": [
      "cs.LO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2020-03-20T08:22:30Z",
    "title_canon_sha256": "dbf8f78b86b0b4896ff0b4f2ce7a33bbb4c86a8b0006288cb4a6bde4ebb77cda"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2003.09140",
    "kind": "arxiv",
    "version": 1
  }
}