Pith Number

pith:4FZKSVYN

pith:2007:4FZKSVYNTIJ6P5ZWIPCP5YIC6V

not attested not anchored not stored refs pending

Local encoding of classical information onto quantum states

Damian Markham, Mio Murao, Yu Tanaka

arxiv:quant-ph/0702190 v3 · 2007-02-20 · 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{4FZKSVYNTIJ6P5ZWIPCP5YIC6V}

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	2026-05-18T00:36:52.282048Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e172a9570d9a13e7f73643c4fee102f56ff7fea9980b0aec19fd0e88aea7726d

Aliases

arxiv: quant-ph/0702190 · arxiv_version: quant-ph/0702190v3 · doi: 10.48550/arxiv.quant-ph/0702190 · pith_short_12: 4FZKSVYNTIJ6 · pith_short_16: 4FZKSVYNTIJ6P5ZW · pith_short_8: 4FZKSVYN

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/4FZKSVYNTIJ6P5ZWIPCP5YIC6V \
  | 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: e172a9570d9a13e7f73643c4fee102f56ff7fea9980b0aec19fd0e88aea7726d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a6ae8f606a76ae1879bc16144a927cdcd408a4b4566f7085ed536b14b93518d6",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2007-02-20T06:28:02Z",
    "title_canon_sha256": "bbe6193ba13c809cd6840b5ff1ae9da7706de278d770b50dc5165d364be580a1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0702190",
    "kind": "arxiv",
    "version": 3
  }
}