Pith Number

pith:55JFGGEO

pith:2009:55JFGGEOKVNLOBYLNT5OPKU4C2

not attested not anchored not stored refs pending

Extremal Isolated Horizon/CFT Correspondence

Xiao-Ning Wu, Yu Tian

arxiv:0904.1554 v3 · 2009-04-09 · hep-th · 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{55JFGGEOKVNLOBYLNT5OPKU4C2}

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	2026-07-04T15:48:46.296757Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ef5253188e555ab7070b6cfae7aa9c168e1d11b66cc4329b2ff5cada1a3ef6a5

Aliases

arxiv: 0904.1554 · arxiv_version: 0904.1554v3 · doi: 10.48550/arxiv.0904.1554 · pith_short_12: 55JFGGEOKVNL · pith_short_16: 55JFGGEOKVNLOBYL · pith_short_8: 55JFGGEO

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/55JFGGEOKVNLOBYLNT5OPKU4C2 \
  | 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: ef5253188e555ab7070b6cfae7aa9c168e1d11b66cc4329b2ff5cada1a3ef6a5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e1c349bb92d3220ef08b2672451eaf05b13a0a0dfa4cefcc94c2e3932595398c",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2009-04-09T15:55:34Z",
    "title_canon_sha256": "1fc4b48f3b641b342e5c774ae71bc3d79cfe29ccdb20c8fac7cf8b2bffaf5afa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.1554",
    "kind": "arxiv",
    "version": 3
  }
}