Pith Number

pith:DRTXG6RU

pith:2003:DRTXG6RUGEDFR7Z2LTT3YUTKM5

not attested not anchored not stored refs pending

The first law for slowly evolving horizons

Ivan Booth, Stephen Fairhurst

arxiv:gr-qc/0307087 v2 · 2003-07-18 · 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{DRTXG6RUGEDFR7Z2LTT3YUTKM5}

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.

Cited by

2 papers in Pith

Interior marginally outer trapped surfaces in Hayward black holes

Thermodynamics of dynamical black holes beyond perturbation theory

Receipt and verification

First computed	2026-07-04T16:40:15.290454Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1c67737a34310658ff3a5ce7bc526a676001152e4e4008673f525ba237a33727

Aliases

arxiv: gr-qc/0307087 · arxiv_version: gr-qc/0307087v2 · doi: 10.48550/arxiv.gr-qc/0307087 · pith_short_12: DRTXG6RUGEDF · pith_short_16: DRTXG6RUGEDFR7Z2 · pith_short_8: DRTXG6RU

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/DRTXG6RUGEDFR7Z2LTT3YUTKM5 \
  | 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: 1c67737a34310658ff3a5ce7bc526a676001152e4e4008673f525ba237a33727

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5a10d3073de68cad8a78c1123d1eefc3c12a7c4b24bfa355202db6db05951f90",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "2003-07-18T19:15:14Z",
    "title_canon_sha256": "c9764fc19b965b74fc13a7f681d19becc4b7b35f00ae6a8b95ab40f692a1e2da"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/0307087",
    "kind": "arxiv",
    "version": 2
  }
}