Pith Number

pith:DLBFM5P5

pith:1994:DLBFM5P5YF7BB7DSV7VTBCJTQK

not attested not anchored not stored refs pending

Hamilton Formalism in Non-Commutative Geometry

W. Kalau

arxiv:hep-th/9409193 v1 · 1994-09-30 · 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{DLBFM5P5YF7BB7DSV7VTBCJTQK}

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	2026-05-18T01:38:41.348552Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1ac25675fdc17e10fc72afeb30893382abcbc1bb18bb7c8b8ae8abd95b80eb34

Aliases

arxiv: hep-th/9409193 · arxiv_version: hep-th/9409193v1 · doi: 10.48550/arxiv.hep-th/9409193 · pith_short_12: DLBFM5P5YF7B · pith_short_16: DLBFM5P5YF7BB7DS · pith_short_8: DLBFM5P5

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/DLBFM5P5YF7BB7DSV7VTBCJTQK \
  | 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: 1ac25675fdc17e10fc72afeb30893382abcbc1bb18bb7c8b8ae8abd95b80eb34

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "969125e4433a10d288a761be3448ebc03fe11452650d18b859e174fa3eaa0e8f",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "hep-th",
    "submitted_at": "1994-09-30T14:23:38Z",
    "title_canon_sha256": "d21d9049937c074389cf72be1379a48fbbba24e29ce317dbe9f2ad941613d53d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "hep-th/9409193",
    "kind": "arxiv",
    "version": 1
  }
}