Pith Number

pith:QUSIZVB3

pith:2011:QUSIZVB3T6R7MHLDCWA7DEMESI

not attested not anchored not stored refs pending

Einstein-Regge equations in spinfoams

Claudio Perini

arxiv:1110.5899 v1 · 2011-10-26 · 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{QUSIZVB3T6R7MHLDCWA7DEMESI}

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	2026-05-18T03:37:05.741165Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

85248cd43b9fa3f61d631581f191849220d1267618ad8ad6a1524c37a551a9e2

Aliases

arxiv: 1110.5899 · arxiv_version: 1110.5899v1 · doi: 10.48550/arxiv.1110.5899 · pith_short_12: QUSIZVB3T6R7 · pith_short_16: QUSIZVB3T6R7MHLD · pith_short_8: QUSIZVB3

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/QUSIZVB3T6R7MHLDCWA7DEMESI \
  | 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: 85248cd43b9fa3f61d631581f191849220d1267618ad8ad6a1524c37a551a9e2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "951ebbec3299364bb60eef6908a83ac9d1720872c254c4a2b3066a0b6a41fb0f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2011-10-26T19:56:54Z",
    "title_canon_sha256": "ebb4b6d977e6c31ace3393e884d6d15580b258de24359962eb3f3cf0748b4e7e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1110.5899",
    "kind": "arxiv",
    "version": 1
  }
}