Pith Number

pith:OHUT7G6Y

pith:2009:OHUT7G6YGOAAJXX64BSMTKGUNA

not attested not anchored not stored refs pending

Four-Dimensional Spin Foam Perturbation Theory

Aleksandar Mikovic, Joao Faria Martins

arxiv:0911.1700 v4 · 2009-11-09 · math-ph · gr-qc · hep-th · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OHUT7G6YGOAAJXX64BSMTKGUNA}

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	2026-05-18T00:44:10.544948Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

71e93f9bd8338004defee064c9a8d46808c887d96d1e348cb718e0494b68b048

Aliases

arxiv: 0911.1700 · arxiv_version: 0911.1700v4 · doi: 10.48550/arxiv.0911.1700 · pith_short_12: OHUT7G6YGOAA · pith_short_16: OHUT7G6YGOAAJXX6 · pith_short_8: OHUT7G6Y

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/OHUT7G6YGOAAJXX64BSMTKGUNA \
  | 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: 71e93f9bd8338004defee064c9a8d46808c887d96d1e348cb718e0494b68b048

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "16a79f44d93ebaade35bac55bed0c15d5439313ac7de68756d21e3bad802ba61",
    "cross_cats_sorted": [
      "gr-qc",
      "hep-th",
      "math.MP"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/3.0/",
    "primary_cat": "math-ph",
    "submitted_at": "2009-11-09T15:20:25Z",
    "title_canon_sha256": "5de90c30b0bf831abf0bc99857bb37ba24c90e4742096f06b2d04a89e34bf72f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0911.1700",
    "kind": "arxiv",
    "version": 4
  }
}