Pith Number

pith:UGPQ2PC6

pith:2013:UGPQ2PC6V6TYBXBH46MI6SBEOW

not attested not anchored not stored refs pending

Thermodynamics of Local Causal Horizons

Arif Mohd, Sudipta Sarkar

arxiv:1304.2008 v2 · 2013-04-07 · 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{UGPQ2PC6V6TYBXBH46MI6SBEOW}

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	2026-05-18T03:17:35.356349Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a19f0d3c5eafa780dc27e7988f482475b28aeed873c1bb7a98b56a9649d6f66b

Aliases

arxiv: 1304.2008 · arxiv_version: 1304.2008v2 · doi: 10.48550/arxiv.1304.2008 · pith_short_12: UGPQ2PC6V6TY · pith_short_16: UGPQ2PC6V6TYBXBH · pith_short_8: UGPQ2PC6

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/UGPQ2PC6V6TYBXBH46MI6SBEOW \
  | 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: a19f0d3c5eafa780dc27e7988f482475b28aeed873c1bb7a98b56a9649d6f66b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "26a047b53aaba1e46ef6c17d147aec0f0876aa4058ec5a8f88082e4058204d3f",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2013-04-07T15:00:26Z",
    "title_canon_sha256": "1002ca45b65f1bb15ef969ca7d5910cf5df724d84cb39f562917bf2f02728b72"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.2008",
    "kind": "arxiv",
    "version": 2
  }
}