Pith Number

pith:BYWECAET

pith:2008:BYWECAET63JATC7DDUY5WUIUCA

not attested not anchored not stored refs pending

Extending Hudson's theorem to mixed quantum states

A. Mandilara, E. Karpov, N. J. Cerf

arxiv:0808.2501 v2 · 2008-08-18 · 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{BYWECAET63JATC7DDUY5WUIUCA}

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	2026-05-18T03:24:42.759950Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0e2c410093f6d2098be31d31db51141029c267565fcf785d953be74492bb7e70

Aliases

arxiv: 0808.2501 · arxiv_version: 0808.2501v2 · doi: 10.48550/arxiv.0808.2501 · pith_short_12: BYWECAET63JA · pith_short_16: BYWECAET63JATC7D · pith_short_8: BYWECAET

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/BYWECAET63JATC7DDUY5WUIUCA \
  | 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: 0e2c410093f6d2098be31d31db51141029c267565fcf785d953be74492bb7e70

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9f27ddeb798610598d8219dc0d9ea566d20bcb8cd4f41032db4cd6388878bf8d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2008-08-18T22:27:02Z",
    "title_canon_sha256": "9f2ac60e8f1382be5714a15cdc58d41d90635d05dbfe5fe6440997ac7ad9082c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0808.2501",
    "kind": "arxiv",
    "version": 2
  }
}