Pith Number

pith:IMMIXXJ6

pith:2008:IMMIXXJ6IWI3QTR7WS264WBA7U

not attested not anchored not stored refs pending

Quantum algebra of the Hamiltonian constraint in reduced four-dimensional gravity

Eyo Eyo Ita III

arxiv:0804.0793 v7 · 2008-04-04 · 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{IMMIXXJ6IWI3QTR7WS264WBA7U}

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	2026-05-18T04:02:12.378036Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

43188bdd3e4591b84e3fb4b5ee5820fd041a8265217224d5dd36268cacf4b1d4

Aliases

arxiv: 0804.0793 · arxiv_version: 0804.0793v7 · doi: 10.48550/arxiv.0804.0793 · pith_short_12: IMMIXXJ6IWI3 · pith_short_16: IMMIXXJ6IWI3QTR7 · pith_short_8: IMMIXXJ6

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/IMMIXXJ6IWI3QTR7WS264WBA7U \
  | 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: 43188bdd3e4591b84e3fb4b5ee5820fd041a8265217224d5dd36268cacf4b1d4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9b36af31b1f9022ad191e1e5a2cb57f398feebb1193e0cdb0953d68b1964def2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2008-04-04T18:26:55Z",
    "title_canon_sha256": "3f1aeb955dd2f1bd164cb74b4cc1eb9b81c5ddac30addbe15aae31cf58a90650"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0804.0793",
    "kind": "arxiv",
    "version": 7
  }
}