Pith Number

pith:4DQWJNDM

pith:2009:4DQWJNDMQAYFTPPPSVTP5SS2IW

not attested not anchored not stored refs pending

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Benoit Saussol (LM), Fran\c{c}oise P\`ene (LM)

arxiv:0901.0441 v1 · 2009-01-05 · math.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4DQWJNDMQAYFTPPPSVTP5SS2IW}

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	2026-05-18T02:15:03.370571Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e0e164b46c803059bdef9566feca5a4583e5daddaa0938c8e24adf5fc47bfa03

Aliases

arxiv: 0901.0441 · arxiv_version: 0901.0441v1 · doi: 10.48550/arxiv.0901.0441 · pith_short_12: 4DQWJNDMQAYF · pith_short_16: 4DQWJNDMQAYFTPPP · pith_short_8: 4DQWJNDM

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/4DQWJNDMQAYFTPPPSVTP5SS2IW \
  | 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: e0e164b46c803059bdef9566feca5a4583e5daddaa0938c8e24adf5fc47bfa03

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "30c1ad0f1ed2d35dddd97337af167e78172838ee2779e0f876f8bebcfa7aed8d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2009-01-05T09:02:01Z",
    "title_canon_sha256": "d85f612653223ea792fc80954806d72407ab5034dd5dcfda0347c260cc986850"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0901.0441",
    "kind": "arxiv",
    "version": 1
  }
}