Pith Number

pith:OAYNPOTS

pith:2012:OAYNPOTSCN5ARTKN2VLTP3SH7W

not attested not anchored not stored refs pending

Towards an Intelligent Tutor for Mathematical Proofs

Bremen, Dominik Dietrich (German Research Center for Artificial Intelligence (DFKI), Germany), London, Marvin Schiller (Brunel University, Serge Autexier (German Research Center for Artificial Intelligence (DFKI), UK)

arxiv:1202.4828 v1 · 2012-02-22 · cs.AI · cs.LO · cs.MS · cs.SC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OAYNPOTSCN5ARTKN2VLTP3SH7W}

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	2026-05-18T04:01:40.563606Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7030d7ba72137a08cd4dd55737ee47fd8536e52ae72694cdc27b3c7e381645be

Aliases

arxiv: 1202.4828 · arxiv_version: 1202.4828v1 · doi: 10.48550/arxiv.1202.4828 · pith_short_12: OAYNPOTSCN5A · pith_short_16: OAYNPOTSCN5ARTKN · pith_short_8: OAYNPOTS

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/OAYNPOTSCN5ARTKN2VLTP3SH7W \
  | 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: 7030d7ba72137a08cd4dd55737ee47fd8536e52ae72694cdc27b3c7e381645be

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "26b62ad70617800372046004fef0fca401636c32c055ca6519adff4eb4841181",
    "cross_cats_sorted": [
      "cs.LO",
      "cs.MS",
      "cs.SC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2012-02-22T06:41:20Z",
    "title_canon_sha256": "f8504a864073a0fe2abd6a78557a753f30cf25ceb42aee99a2aa8529df13e044"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1202.4828",
    "kind": "arxiv",
    "version": 1
  }
}