Pith Number

pith:AKAKQJMF

pith:2001:AKAKQJMFREXVM3ZVHF3AJTUI7S

not attested not anchored not stored refs pending

A simple operational interpretation of the fidelity

Jennifer L. Dodd, Michael A. Nielsen

arxiv:quant-ph/0111053 v1 · 2001-11-08 · 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{AKAKQJMFREXVM3ZVHF3AJTUI7S}

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	2026-07-04T16:29:43.052451Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0280a82585892f566f35397604ce88fc8d5426dc86d194e5f6820c94cf7af163

Aliases

arxiv: quant-ph/0111053 · arxiv_version: quant-ph/0111053v1 · doi: 10.48550/arxiv.quant-ph/0111053 · pith_short_12: AKAKQJMFREXV · pith_short_16: AKAKQJMFREXVM3ZV · pith_short_8: AKAKQJMF

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/AKAKQJMFREXVM3ZVHF3AJTUI7S \
  | 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: 0280a82585892f566f35397604ce88fc8d5426dc86d194e5f6820c94cf7af163

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d16633bdc6b01c21a28046e4ff630943edafe4c3a8dcf90a6e7214dd75d362ea",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2001-11-08T18:38:45Z",
    "title_canon_sha256": "adc8634b0ce2d4ddc420dd261f5e055b6db2e52bee78a47179b22ca868abfba5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0111053",
    "kind": "arxiv",
    "version": 1
  }
}