Pith Number

pith:KR5BN6R6

pith:1998:KR5BN6R643AEEXTH7HES77Z7JJ

not attested not anchored not stored refs pending

Parametric up conversion of the vacuum

Manchester M13 9PL, Manchester Univ., Trevor W. Marshal (Dept. of Maths., U.K)

arxiv:quant-ph/9803054 v1 · 1998-03-20 · 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{KR5BN6R643AEEXTH7HES77Z7JJ}

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	2026-07-04T14:47:11.380665Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

547a16fa3ee6c0425e67f9c92fff3f4a7dea9b377a2e100cc5e60006ab619d54

Aliases

arxiv: quant-ph/9803054 · arxiv_version: quant-ph/9803054v1 · doi: 10.48550/arxiv.quant-ph/9803054 · pith_short_12: KR5BN6R643AE · pith_short_16: KR5BN6R643AEEXTH · pith_short_8: KR5BN6R6

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/KR5BN6R643AEEXTH7HES77Z7JJ \
  | 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: 547a16fa3ee6c0425e67f9c92fff3f4a7dea9b377a2e100cc5e60006ab619d54

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d921675be747284424324bc3c4343c68c56c77b895fc9986e75004d9417848b9",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "1998-03-20T13:30:28Z",
    "title_canon_sha256": "c24c94ee692301b347eac698497c4768ec1f16f9b6a408f05e35873e605889d4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/9803054",
    "kind": "arxiv",
    "version": 1
  }
}