Pith Number

pith:UMODTSR2

pith:2004:UMODTSR2PL2Y3Z6VACJX4LXEZN

not attested not anchored not stored refs pending

Phase Space Formulation of Quantum Mechanics. Insight into the Measurement Problem

Daniela Dragoman

arxiv:quant-ph/0402021 v1 · 2004-02-03 · 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{UMODTSR2PL2Y3Z6VACJX4LXEZN}

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	2026-05-18T01:37:58.687305Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a31c39ca3a7af58de7d500937e2ee4cb58e441e35f6b3c5da4dd2ac7d4b3bd44

Aliases

arxiv: quant-ph/0402021 · arxiv_version: quant-ph/0402021v1 · doi: 10.48550/arxiv.quant-ph/0402021 · pith_short_12: UMODTSR2PL2Y · pith_short_16: UMODTSR2PL2Y3Z6V · pith_short_8: UMODTSR2

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/UMODTSR2PL2Y3Z6VACJX4LXEZN \
  | 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: a31c39ca3a7af58de7d500937e2ee4cb58e441e35f6b3c5da4dd2ac7d4b3bd44

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0bb718c17fd96b0e6590893cb8c2e0182eebeb9370f83aa0794464e3056ce537",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2004-02-03T10:07:22Z",
    "title_canon_sha256": "4d9f471b1a61c982fb5eceab23513ffd89f5017780f4d815c0453c28758b4d54"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0402021",
    "kind": "arxiv",
    "version": 1
  }
}