Pith Number

pith:VGP5KYLU

pith:2013:VGP5KYLUJI73GJL4SQOYIJEBCV

not attested not anchored not stored refs pending

From bricks to quasinormal modes: A new perspective on black hole entropy

Michele Arzano, Olaf Dreyer, Stefano Bianco

arxiv:1305.3479 v1 · 2013-05-15 · gr-qc · hep-th

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VGP5KYLUJI73GJL4SQOYIJEBCV}

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	2026-05-18T01:49:56.934610Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a99fd561744a3fb3257c941d842481157046ede5afff366f17225b126eb403c0

Aliases

arxiv: 1305.3479 · arxiv_version: 1305.3479v1 · doi: 10.48550/arxiv.1305.3479 · pith_short_12: VGP5KYLUJI73 · pith_short_16: VGP5KYLUJI73GJL4 · pith_short_8: VGP5KYLU

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/VGP5KYLUJI73GJL4SQOYIJEBCV \
  | 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: a99fd561744a3fb3257c941d842481157046ede5afff366f17225b126eb403c0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7830973d7d27c6bb7778fed02ac4579d0e8b682d7079aa23fe55cfea04c21e0c",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2013-05-15T14:01:33Z",
    "title_canon_sha256": "99d1a35858f24d333cd46f8e8f78fa41cd897892f45c0ac010fe833bbd4020bd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.3479",
    "kind": "arxiv",
    "version": 1
  }
}