Pith Number

pith:4BRWYR47

pith:2017:4BRWYR47T7QVWYFPVBMF2ED332

not attested not anchored not stored refs pending

Black Hole Entropy from BMS Symmetry at the Horizon

S. Carlip

arxiv:1702.04439 v3 · 2017-02-15 · 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{4BRWYR47T7QVWYFPVBMF2ED332}

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	2026-05-18T00:21:14.617767Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e0636c479f9fe15b60afa8585d107bde8f8bb64c9de640f1df8ed3b53a12f423

Aliases

arxiv: 1702.04439 · arxiv_version: 1702.04439v3 · doi: 10.48550/arxiv.1702.04439 · pith_short_12: 4BRWYR47T7QV · pith_short_16: 4BRWYR47T7QVWYFP · pith_short_8: 4BRWYR47

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/4BRWYR47T7QVWYFPVBMF2ED332 \
  | 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: e0636c479f9fe15b60afa8585d107bde8f8bb64c9de640f1df8ed3b53a12f423

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "74dbd2d72448156533f710f00df43415f69a3c7934bab131733a9819d6c182ea",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2017-02-15T01:50:07Z",
    "title_canon_sha256": "e45fb39fb0f077f809fb3a848c84fc0abe5ff51cef0a4696ff51675a1da60141"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.04439",
    "kind": "arxiv",
    "version": 3
  }
}