Pith Number

pith:56KJOUTF

pith:2007:56KJOUTFXQAM3XXLPOGTFICHF7

not attested not anchored not stored refs pending

Analysis of a convenient information bound for general quantum channels

Caleb J. O'Loan

arxiv:0705.0931 v2 · 2007-05-07 · 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{56KJOUTFXQAM3XXLPOGTFICHF7}

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	2026-05-18T02:16:31.064210Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ef94975265bc00cddeeb7b8d32a0472fd6d0073a4254db16b1392c612ef15cb1

Aliases

arxiv: 0705.0931 · arxiv_version: 0705.0931v2 · doi: 10.48550/arxiv.0705.0931 · pith_short_12: 56KJOUTFXQAM · pith_short_16: 56KJOUTFXQAM3XXL · pith_short_8: 56KJOUTF

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/56KJOUTFXQAM3XXLPOGTFICHF7 \
  | 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: ef94975265bc00cddeeb7b8d32a0472fd6d0073a4254db16b1392c612ef15cb1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5ee0f97331d4f0de6b5bb4efb79a2f21e3cfe5521829c3e049d7935a8b6e3f3e",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2007-05-07T15:40:56Z",
    "title_canon_sha256": "4c9719835812c8519aceabf9b4c588eec73761cb0919f94e7fa1bf1be52a965e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0705.0931",
    "kind": "arxiv",
    "version": 2
  }
}