Pith Number

pith:EIW4XCAC

pith:2010:EIW4XCACHG4DANYZX25XLAET66

not attested not anchored not stored refs pending

Asymptotics of 4d spin foam models

Frank Hellmann, Henrique Gomes, John W. Barrett, Richard J. Dowdall, Roberto Pereira, Winston J. Fairbairn

arxiv:1003.1886 v1 · 2010-03-09 · 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{EIW4XCACHG4DANYZX25XLAET66}

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	2026-05-18T02:08:35.975605Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

222dcb880239b8303719bebb758093f7bf52f7fc85c5fd6077d30f8fdaeeb72b

Aliases

arxiv: 1003.1886 · arxiv_version: 1003.1886v1 · doi: 10.48550/arxiv.1003.1886 · pith_short_12: EIW4XCACHG4D · pith_short_16: EIW4XCACHG4DANYZ · pith_short_8: EIW4XCAC

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/EIW4XCACHG4DANYZX25XLAET66 \
  | 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: 222dcb880239b8303719bebb758093f7bf52f7fc85c5fd6077d30f8fdaeeb72b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "40554de8ffc1548b8935c805da26447eedcdb7eb6663f2825c8cd8adabcf0cff",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2010-03-09T14:50:24Z",
    "title_canon_sha256": "d0a1a3147d085241b1b836c130cddeaab1cc2c22a07fdfd3f4d617daece40fc4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1003.1886",
    "kind": "arxiv",
    "version": 1
  }
}