Pith Number

pith:54MRNHQC

pith:2013:54MRNHQC3NRSQ6POZY7YYSSZWZ

not attested not anchored not stored refs pending

Matter and Ricci collineations

Josep Llosa

arxiv:1302.3048 v1 · 2013-02-13 · gr-qc · math-ph · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{54MRNHQC3NRSQ6POZY7YYSSZWZ}

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	2026-05-18T00:30:09.862261Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ef19169e02db632879eece3f8c4a59b652a29561f51c39380096e7a2670d45c4

Aliases

arxiv: 1302.3048 · arxiv_version: 1302.3048v1 · doi: 10.48550/arxiv.1302.3048 · pith_short_12: 54MRNHQC3NRS · pith_short_16: 54MRNHQC3NRSQ6PO · pith_short_8: 54MRNHQC

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/54MRNHQC3NRSQ6POZY7YYSSZWZ \
  | 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: ef19169e02db632879eece3f8c4a59b652a29561f51c39380096e7a2670d45c4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "82881f48682694503ed560c49fbd14bddb255aa8d2854ac73113ecba63903d1d",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2013-02-13T10:52:16Z",
    "title_canon_sha256": "66df85c9c33135c2e2d6c0f99fcdb5a2d12aa8a28eac9913d6048c9208192c58"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1302.3048",
    "kind": "arxiv",
    "version": 1
  }
}