Pith Number

pith:5D7YBUUU

pith:2003:5D7YBUUUYHWBOP5ECGICZPYIEJ

not attested not anchored not stored refs pending

Spin Foam Quantization and Anomalies

Alejandro Perez, Martin Bojowald

arxiv:gr-qc/0303026 v2 · 2003-03-06 · gr-qc · hep-th

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5D7YBUUUYHWBOP5ECGICZPYIEJ}

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	2026-05-18T01:39:23.258714Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e8ff80d294c1ec173fa411902cbf0822698b141d25e1a5e296f95ea8c72b1ee5

Aliases

arxiv: gr-qc/0303026 · arxiv_version: gr-qc/0303026v2 · doi: 10.48550/arxiv.gr-qc/0303026 · pith_short_12: 5D7YBUUUYHWB · pith_short_16: 5D7YBUUUYHWBOP5E · pith_short_8: 5D7YBUUU

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/5D7YBUUUYHWBOP5ECGICZPYIEJ \
  | 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: e8ff80d294c1ec173fa411902cbf0822698b141d25e1a5e296f95ea8c72b1ee5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b579b413261d839473380dd6c2688b32bf29b4941d4b7d190b1b98af97bfd769",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2003-03-06T16:08:30Z",
    "title_canon_sha256": "fe34e9ec2f916c0e7460276a978d98ef1159202d7e9e8dbf3c679e94a4c38dd6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/0303026",
    "kind": "arxiv",
    "version": 2
  }
}