Pith Number

pith:BU4CTAGL

pith:2009:BU4CTAGLRPT5YLBTN4FEAYCAZD

not attested not anchored not stored refs pending

Exit time for anchored expansion

C. Rau, T. Delmotte

arxiv:0903.3892 v2 · 2009-03-23 · math.PR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BU4CTAGLRPT5YLBTN4FEAYCAZD}

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	2026-05-18T01:37:29.133425Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0d382980cb8be7dc2c336f0a406040c8e3b4e96c2699afe2b10599fd18cfdb1b

Aliases

arxiv: 0903.3892 · arxiv_version: 0903.3892v2 · doi: 10.48550/arxiv.0903.3892 · pith_short_12: BU4CTAGLRPT5 · pith_short_16: BU4CTAGLRPT5YLBT · pith_short_8: BU4CTAGL

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/BU4CTAGLRPT5YLBTN4FEAYCAZD \
  | 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: 0d382980cb8be7dc2c336f0a406040c8e3b4e96c2699afe2b10599fd18cfdb1b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1b92622626f5799b2881307ef24ec31d3fd7120635bc53dd415a28fbd5c55fed",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.PR",
    "submitted_at": "2009-03-23T16:36:16Z",
    "title_canon_sha256": "3088833cee092ed0b04be22d979aba3dc25b386dab206e52ffb4363d86fe6363"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0903.3892",
    "kind": "arxiv",
    "version": 2
  }
}