Pith Number

pith:ZNG7ZO7G

pith:2009:ZNG7ZO7GMILBAVIW5GBEOQVDOC

not attested not anchored not stored refs pending

Topological Quantum Image Analysis

George Chapline, Jonathan L DuBois

arxiv:0904.4306 v1 · 2009-04-28 · quant-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZNG7ZO7GMILBAVIW5GBEOQVDOC}

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	2026-05-18T02:13:56.806818Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cb4dfcbbe66216105516e9824742a370bfa1889c42fb6249675a9b9c6f1f4957

Aliases

arxiv: 0904.4306 · arxiv_version: 0904.4306v1 · doi: 10.48550/arxiv.0904.4306 · pith_short_12: ZNG7ZO7GMILB · pith_short_16: ZNG7ZO7GMILBAVIW · pith_short_8: ZNG7ZO7G

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/ZNG7ZO7GMILBAVIW5GBEOQVDOC \
  | 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: cb4dfcbbe66216105516e9824742a370bfa1889c42fb6249675a9b9c6f1f4957

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2145fb337188d59dc814fd22d60cd9314ba4a3e8e9f3b564a072bdff6d68d0f9",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/publicdomain/",
    "primary_cat": "quant-ph",
    "submitted_at": "2009-04-28T04:38:17Z",
    "title_canon_sha256": "70c14c354909a2a1307bc3dc8160ce8d9d96205e763ed12c40f984ffb3028cf0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.4306",
    "kind": "arxiv",
    "version": 1
  }
}