Pith Number

pith:AQFLYZ6Z

pith:2008:AQFLYZ6ZMZJYFGVCRXXF2CTEXR

not attested not anchored not stored refs pending

Mechanical Systems that are both Classical and Quantum

Norman Margolus

arxiv:0805.3357 v2 · 2008-05-22 · quant-ph · nlin.CG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{AQFLYZ6ZMZJYFGVCRXXF2CTEXR}

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	2026-05-18T01:34:36.279211Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

040abc67d96653829aa28dee5d0a64bc629e23999bc4b456a7ac864cbcec79c4

Aliases

arxiv: 0805.3357 · arxiv_version: 0805.3357v2 · doi: 10.48550/arxiv.0805.3357 · pith_short_12: AQFLYZ6ZMZJY · pith_short_16: AQFLYZ6ZMZJYFGVC · pith_short_8: AQFLYZ6Z

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/AQFLYZ6ZMZJYFGVCRXXF2CTEXR \
  | 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: 040abc67d96653829aa28dee5d0a64bc629e23999bc4b456a7ac864cbcec79c4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "eaac2f68aacc5ab1626c03a017a3a8d1b5c455e443964000a6b4942c9474baf0",
    "cross_cats_sorted": [
      "nlin.CG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2008-05-22T19:52:15Z",
    "title_canon_sha256": "0e1adc83937fc61a5478530bfc8ded2471922d657f40cb0656317870f5134b81"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0805.3357",
    "kind": "arxiv",
    "version": 2
  }
}