Pith Number

pith:YUKF6TZB

pith:1999:YUKF6TZBUT5HY4XGJVDKCSQTNE

not attested not anchored not stored refs pending

Quantum states as generalized classical ensembles

Sergio De Filippo

arxiv:quant-ph/9911122 v5 · 1999-11-30 · quant-ph · cond-mat.dis-nn · hep-th

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YUKF6TZBUT5HY4XGJVDKCSQTNE}

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	2026-05-18T04:12:18.990148Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c5145f4f21a4fa7c72e64d46a14a136907269c69745a46b4efc76ca5ac771337

Aliases

arxiv: quant-ph/9911122 · arxiv_version: quant-ph/9911122v5 · doi: 10.48550/arxiv.quant-ph/9911122 · pith_short_12: YUKF6TZBUT5H · pith_short_16: YUKF6TZBUT5HY4XG · pith_short_8: YUKF6TZB

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/YUKF6TZBUT5HY4XGJVDKCSQTNE \
  | 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: c5145f4f21a4fa7c72e64d46a14a136907269c69745a46b4efc76ca5ac771337

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "81e3fd31795a3424871e4551f535898a4c4b5309088818bb2ff9b536b6e89743",
    "cross_cats_sorted": [
      "cond-mat.dis-nn",
      "hep-th"
    ],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "1999-11-30T18:29:44Z",
    "title_canon_sha256": "185850921afd63b0b5e1d48c87c36335f86f57e3380457139b8be1a1a6b100be"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/9911122",
    "kind": "arxiv",
    "version": 5
  }
}