Pith Number

pith:IBPRXZM3

pith:2011:IBPRXZM3TQ4CIKIZMTEDQIOK2P

not attested not anchored not stored refs pending

Spin Foam Models for Quantum Gravity and semi-classical limit

Mait\'e Dupuis

arxiv:1104.2765 v1 · 2011-04-14 · 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{IBPRXZM3TQ4CIKIZMTEDQIOK2P}

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	2026-05-18T02:22:09.206499Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

405f1be59b9c3824291964c83821cad3c9cbf6f96dc2908624e87f9b7d564068

Aliases

arxiv: 1104.2765 · arxiv_version: 1104.2765v1 · doi: 10.48550/arxiv.1104.2765 · pith_short_12: IBPRXZM3TQ4C · pith_short_16: IBPRXZM3TQ4CIKIZ · pith_short_8: IBPRXZM3

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/IBPRXZM3TQ4CIKIZMTEDQIOK2P \
  | 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: 405f1be59b9c3824291964c83821cad3c9cbf6f96dc2908624e87f9b7d564068

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7a7f93d09371be73b070474acfa86f74657b8d12444560be2ce30e7deac6e351",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2011-04-14T13:56:31Z",
    "title_canon_sha256": "9f27798f0118014030a522040dda2def8401c7939e173ae8cf7ba96e28086b5c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1104.2765",
    "kind": "arxiv",
    "version": 1
  }
}