Pith Number

pith:AUE2PZOC

pith:2009:AUE2PZOC2A2JPHSFOYANZJQHPL

not attested not anchored not stored refs pending

Geometrothermodynamics of black holes in two dimensions

Alberto Sanchez, Hernando Quevedo

arxiv:0902.4488 v2 · 2009-02-25 · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{AUE2PZOC2A2JPHSFOYANZJQHPL}

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	2026-05-18T02:14:38.818443Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0509a7e5c2d034979e457600dca6077ae02f842b5845e9d3e3494e60dc14b57d

Aliases

arxiv: 0902.4488 · arxiv_version: 0902.4488v2 · doi: 10.48550/arxiv.0902.4488 · pith_short_12: AUE2PZOC2A2J · pith_short_16: AUE2PZOC2A2JPHSF · pith_short_8: AUE2PZOC

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/AUE2PZOC2A2JPHSFOYANZJQHPL \
  | 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: 0509a7e5c2d034979e457600dca6077ae02f842b5845e9d3e3494e60dc14b57d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dd0f857b21472d8ffef9fd1b094b9fb8700d4e00b9878d9c58504f6c5efdd278",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2009-02-25T23:39:48Z",
    "title_canon_sha256": "7d3ad30e5e939e071036dabf4d3c2c0b4bef9c788706d9ecc19b9de9ece23edd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0902.4488",
    "kind": "arxiv",
    "version": 2
  }
}