Pith Number

pith:X2RFJPMO

pith:2002:X2RFJPMORHB34NAHQYPWGZCDV5

not attested not anchored not stored refs pending

Classical Dynamics as Constrained Quantum Dynamics

David J. Rowe, Stephen D. Bartlett

arxiv:quant-ph/0208168 v1 · 2002-08-28 · 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{X2RFJPMORHB34NAHQYPWGZCDV5}

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	2026-07-04T14:46:00.541261Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bea254bd8e89c3be3407861f636443af728e3fcd3bcbe044ef597282f2d6d1ee

Aliases

arxiv: quant-ph/0208168 · arxiv_version: quant-ph/0208168v1 · doi: 10.48550/arxiv.quant-ph/0208168 · pith_short_12: X2RFJPMORHB3 · pith_short_16: X2RFJPMORHB34NAH · pith_short_8: X2RFJPMO

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/X2RFJPMORHB34NAHQYPWGZCDV5 \
  | 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: bea254bd8e89c3be3407861f636443af728e3fcd3bcbe044ef597282f2d6d1ee

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "284db00728bb30f2656d7e9063c3a71d53d7ce0d9f175d23b87eaa4127abed3e",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2002-08-28T00:43:56Z",
    "title_canon_sha256": "1fcf52c3c7ef0d1cdeea5f3c2f9e4d9ad91458eed27cf04fba05b56ebff424bb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0208168",
    "kind": "arxiv",
    "version": 1
  }
}