Pith Number

pith:EW7WRGOO

pith:2001:EW7WRGOOJV2HQJWNRGFCQPR2EY

not attested not anchored not stored refs pending

A Continuous Transition Between Quantum and Classical Mechanics (I)

Partha Ghose

arxiv:quant-ph/0104104 v2 · 2001-04-20 · 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{EW7WRGOOJV2HQJWNRGFCQPR2EY}

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	2026-05-18T02:27:06.368281Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

25bf6899ce4d747826cd898a283e3a26156898841106f93cd227d5c22de52b93

Aliases

arxiv: quant-ph/0104104 · arxiv_version: quant-ph/0104104v2 · doi: 10.48550/arxiv.quant-ph/0104104 · pith_short_12: EW7WRGOOJV2H · pith_short_16: EW7WRGOOJV2HQJWN · pith_short_8: EW7WRGOO

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/EW7WRGOOJV2HQJWNRGFCQPR2EY \
  | 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: 25bf6899ce4d747826cd898a283e3a26156898841106f93cd227d5c22de52b93

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "caeb3a71d0165af4c04b5a47b6fe1b2ade275689f751cbb7315c042ec7cee6bc",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2001-04-20T11:41:37Z",
    "title_canon_sha256": "f9607a04ccb91f9802736c7ab249cd7933cd98328c0738e15915d3a37c74088d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0104104",
    "kind": "arxiv",
    "version": 2
  }
}