Pith Number

pith:3CR2J26T

pith:2026:3CR2J26TRPJJAPJTJAYGZXIUCB

not attested not anchored not stored refs pending

Gravitational entropy in Petrov Type I spacetimes

Maharshi Sarma, Roberto A. Sussman, Sebasti\'an N\'ajera

arxiv:2605.20611 v1 · 2026-05-20 · 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{3CR2J26TRPJJAPJTJAYGZXIUCB}

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	2026-05-21T01:04:44.502885Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d8a3a4ebd38bd2903d3348306cdd141045cdb2551a73aceca0d734bb90d7dc57

Aliases

arxiv: 2605.20611 · arxiv_version: 2605.20611v1 · doi: 10.48550/arxiv.2605.20611 · pith_short_12: 3CR2J26TRPJJ · pith_short_16: 3CR2J26TRPJJAPJT · pith_short_8: 3CR2J26T

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/3CR2J26TRPJJAPJTJAYGZXIUCB \
  | 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: d8a3a4ebd38bd2903d3348306cdd141045cdb2551a73aceca0d734bb90d7dc57

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "caa7a785bd1c637c0907b361efe501ea4c55c6615e51642baddd494dc28b38e0",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2026-05-20T01:58:52Z",
    "title_canon_sha256": "ff048a2d6471fd696431ef472360c5a7b567d19a4f2c6f40bd13a32ec3bf4b0d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.20611",
    "kind": "arxiv",
    "version": 1
  }
}