Pith Number

pith:JIBVNZCD

pith:2013:JIBVNZCDBBETI2JRR3O3UG4IXF

not attested not anchored not stored refs pending

Clausius entropy for arbitrary bifurcate null surfaces

Matt Visser (Victoria University of Wellington), Valentina Baccetti (Victoria University of Wellington)

arxiv:1303.3185 v3 · 2013-03-13 · gr-qc · hep-th

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

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

1 paper in Pith

Semi-classical spacetime thermodynamics

Receipt and verification

First computed	2026-05-18T00:29:34.037305Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4a0356e44308493469318eddba1b88b95051da4ffd367498ec5c3f4579fcc096

Aliases

arxiv: 1303.3185 · arxiv_version: 1303.3185v3 · doi: 10.48550/arxiv.1303.3185 · pith_short_12: JIBVNZCDBBET · pith_short_16: JIBVNZCDBBETI2JR · pith_short_8: JIBVNZCD

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/JIBVNZCDBBETI2JRR3O3UG4IXF \
  | 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: 4a0356e44308493469318eddba1b88b95051da4ffd367498ec5c3f4579fcc096

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "50dec76a36edcb39190da1c9ba0cd3240b25fa5fcee9623dc01a290576a5bee7",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2013-03-13T15:12:45Z",
    "title_canon_sha256": "820c3147e97c205427a0e436809794454619b906a6c2863c502c6d2b12ef6b29"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.3185",
    "kind": "arxiv",
    "version": 3
  }
}