Pith Number

pith:6JHUOBR6

pith:2004:6JHUOBR653KZEEZSFXRP2BU3UF

not attested not anchored not stored refs pending

Dynamics of loop quantum gravity and spin foam models in three dimensions

Alejandro Perez, Karim Noui

arxiv:gr-qc/0402112 v2 · 2004-02-25 · 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{6JHUOBR653KZEEZSFXRP2BU3UF}

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	2026-05-18T00:37:30.381640Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f24f47063eeed59213322de2fd069ba14398633efb279efaca44f44fc9f4e468

Aliases

arxiv: gr-qc/0402112 · arxiv_version: gr-qc/0402112v2 · doi: 10.48550/arxiv.gr-qc/0402112 · pith_short_12: 6JHUOBR653KZ · pith_short_16: 6JHUOBR653KZEEZS · pith_short_8: 6JHUOBR6

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/6JHUOBR653KZEEZSFXRP2BU3UF \
  | 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: f24f47063eeed59213322de2fd069ba14398633efb279efaca44f44fc9f4e468

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4841fe7ddbe39d3a3112d3cd328562b928e5ff415ea8befb80a899490dbde117",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "2004-02-25T03:42:52Z",
    "title_canon_sha256": "98876e5e2e16f906c3097008accd71eea78fa1d8ae3c5b8d7c270748526adf2e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/0402112",
    "kind": "arxiv",
    "version": 2
  }
}