Pith Number

pith:6WAIBXWQ

pith:2009:6WAIBXWQZ3UVPDQL5U24P5CBCY

not attested not anchored not stored refs pending

Asymptotic analysis of the EPRL four-simplex amplitude

Frank Hellmann, Henrique Gomes, John W. Barrett, R.J. Dowdall, Winston J. Fairbairn

arxiv:0902.1170 v2 · 2009-02-06 · 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{6WAIBXWQZ3UVPDQL5U24P5CBCY}

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.

Cited by

2 papers in Pith

The problem of time: a path integral view

Toller matrices and the Feynman $i\varepsilon$ in spinfoams

Receipt and verification

First computed	2026-07-04T17:19:27.074571Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f58080ded0cee9578e0bed35c7f441162e95973081570e247223884f6b0028b6

Aliases

arxiv: 0902.1170 · arxiv_version: 0902.1170v2 · doi: 10.48550/arxiv.0902.1170 · pith_short_12: 6WAIBXWQZ3UV · pith_short_16: 6WAIBXWQZ3UVPDQL · pith_short_8: 6WAIBXWQ

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/6WAIBXWQZ3UVPDQL5U24P5CBCY \
  | 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: f58080ded0cee9578e0bed35c7f441162e95973081570e247223884f6b0028b6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d8ca0547c2cf2c6edd2fc2e7acb34e96b84dc039071df55ee4d4bb152378b06b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2009-02-06T20:57:06Z",
    "title_canon_sha256": "3bec20e6eb584a7c36bb901aeb6eb4a5e60a2bf20b3e8f837f9029deb34d7a87"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0902.1170",
    "kind": "arxiv",
    "version": 2
  }
}