Pith Number

pith:OGSTKV5L

pith:2012:OGSTKV5LUDRUEOZALZUPMFQECS

not attested not anchored not stored refs pending

The new spin foam models and quantum gravity

Alejandro Perez

arxiv:1205.0911 v1 · 2012-05-04 · 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{OGSTKV5LUDRUEOZALZUPMFQECS}

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	2026-05-18T03:56:23.607435Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

71a53557aba0e3423b205e68f6160414a63ea2b276fceb585fbb8c13893ab330

Aliases

arxiv: 1205.0911 · arxiv_version: 1205.0911v1 · doi: 10.48550/arxiv.1205.0911 · pith_short_12: OGSTKV5LUDRU · pith_short_16: OGSTKV5LUDRUEOZA · pith_short_8: OGSTKV5L

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/OGSTKV5LUDRUEOZALZUPMFQECS \
  | 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: 71a53557aba0e3423b205e68f6160414a63ea2b276fceb585fbb8c13893ab330

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d0e5c706a1b29911336f2b0c337c9a547c388704b52693d4a87645433a2a16d6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2012-05-04T10:42:37Z",
    "title_canon_sha256": "76fdb244ca9f31fba71d81a4a0d2dddff92fff7a9f7eb6ed0566712aba3ac50b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1205.0911",
    "kind": "arxiv",
    "version": 1
  }
}