Pith Number

pith:YFN6FPR7

pith:1999:YFN6FPR7I6MHSSPE2DLE4SFTI3

not attested not anchored not stored refs pending

Internal Time Superoperator for Quantum Systems with Diagonal Singularity

Adolfo R. Ordoniez, Roberto Laura

arxiv:quant-ph/9903090 v1 · 1999-03-29 · 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{YFN6FPR7I6MHSSPE2DLE4SFTI3}

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	2026-05-18T01:05:00.338515Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c15be2be3f47987949e4d0d64e48b346fbb1316d234a659c35f1d3e0def3623b

Aliases

arxiv: quant-ph/9903090 · arxiv_version: quant-ph/9903090v1 · doi: 10.48550/arxiv.quant-ph/9903090 · pith_short_12: YFN6FPR7I6MH · pith_short_16: YFN6FPR7I6MHSSPE · pith_short_8: YFN6FPR7

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/YFN6FPR7I6MHSSPE2DLE4SFTI3 \
  | 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: c15be2be3f47987949e4d0d64e48b346fbb1316d234a659c35f1d3e0def3623b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f5924136b91a92ded98813a70c1973b02ed6b7f8b31586d248b071085b303901",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "1999-03-29T18:18:49Z",
    "title_canon_sha256": "0b5da300ed5056e1075d9fc426e46f12c7c7174307ea8104fe809b0a05ee9e81"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/9903090",
    "kind": "arxiv",
    "version": 1
  }
}