Pith Number

pith:5R3C4SYG

pith:1995:5R3C4SYGB34UZ274YKLAXKWKR3

not attested not anchored not stored refs pending

VON NEUMANN AND SHANNON-WEHRL ENTROPY FOR SQUEEZED STATES AND COSMOLOGICAL PARTICLE PRODUCTION

M. Gasperini, M. Giovannini

arxiv:hep-th/9502112 v1 · 1995-02-17 · hep-th · gr-qc · 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{5R3C4SYGB34UZ274YKLAXKWKR3}

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	2026-05-18T00:36:53.378191Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ec762e4b060ef94cebfcc2960baaca8ec885606c551280a5f8a9afd0026eb799

Aliases

arxiv: hep-th/9502112 · arxiv_version: hep-th/9502112v1 · doi: 10.48550/arxiv.hep-th/9502112 · pith_short_12: 5R3C4SYGB34U · pith_short_16: 5R3C4SYGB34UZ274 · pith_short_8: 5R3C4SYG

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/5R3C4SYGB34UZ274YKLAXKWKR3 \
  | 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: ec762e4b060ef94cebfcc2960baaca8ec885606c551280a5f8a9afd0026eb799

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "27e75182325a61fa6d07aa58bd3033f8174573dc200a5939e79447e3802af901",
    "cross_cats_sorted": [
      "gr-qc",
      "quant-ph"
    ],
    "license": "",
    "primary_cat": "hep-th",
    "submitted_at": "1995-02-17T15:47:23Z",
    "title_canon_sha256": "1b3852835328fcd7a09cf38acee7849794259f3c875ce0ba97a1043e4f67f320"
  },
  "schema_version": "1.0",
  "source": {
    "id": "hep-th/9502112",
    "kind": "arxiv",
    "version": 1
  }
}