Pith Number

pith:PYHWIC6Y

pith:2011:PYHWIC6Y66IBQL73HNA7MS265B

not attested not anchored not stored refs pending

Complex Ashtekar variables, the Kodama state and spinfoam gravity

Wolfgang Wieland

arxiv:1105.2330 v2 · 2011-05-11 · 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{PYHWIC6Y66IBQL73HNA7MS265B}

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	2026-05-18T02:22:00.379184Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7e0f640bd8f790182ffb3b41f64b5ee867b7c1c936f89ab86ba10c5d8f0f6cd2

Aliases

arxiv: 1105.2330 · arxiv_version: 1105.2330v2 · doi: 10.48550/arxiv.1105.2330 · pith_short_12: PYHWIC6Y66IB · pith_short_16: PYHWIC6Y66IBQL73 · pith_short_8: PYHWIC6Y

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/PYHWIC6Y66IBQL73HNA7MS265B \
  | 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: 7e0f640bd8f790182ffb3b41f64b5ee867b7c1c936f89ab86ba10c5d8f0f6cd2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b64c45ed16abbe6adae7948ac1056868cc4b7e48347ea17903ea35c269c80878",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2011-05-11T22:13:40Z",
    "title_canon_sha256": "bcaefff391473653d215f52da2928631918f98be9d7388c18fc07e7937a64561"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1105.2330",
    "kind": "arxiv",
    "version": 2
  }
}