Pith Number

pith:2OHY5NY7

pith:2009:2OHY5NY7VLSWFEAHGAOKNKX7PY

not attested not anchored not stored refs pending

Noncommutative Quantum Mechanics and Quantum Cosmology

Catarina Bastos, Joao Nuno Prata, Nuno Dias, Orfeu Bertolami

arxiv:0904.0400 v2 · 2009-04-02 · hep-th

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2OHY5NY7VLSWFEAHGAOKNKX7PY}

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	2026-05-18T02:14:07.968764Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d38f8eb71faae5629007301ca6aaff7e0e0820ec55c68cfa764d55f9f6ec7787

Aliases

arxiv: 0904.0400 · arxiv_version: 0904.0400v2 · doi: 10.48550/arxiv.0904.0400 · pith_short_12: 2OHY5NY7VLSW · pith_short_16: 2OHY5NY7VLSWFEAH · pith_short_8: 2OHY5NY7

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/2OHY5NY7VLSWFEAHGAOKNKX7PY \
  | 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: d38f8eb71faae5629007301ca6aaff7e0e0820ec55c68cfa764d55f9f6ec7787

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4c0179115382ec8b04f3ce9bfc70e89c0ac3aa193b8f8823fa88774d6d600510",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2009-04-02T14:56:35Z",
    "title_canon_sha256": "b6a7e60dc422978f3c0ea5c6742dd36dd83d74eb47425ab26bd54fdd51d1e6dc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.0400",
    "kind": "arxiv",
    "version": 2
  }
}