Pith Number

pith:6M4NCZXY

pith:2012:6M4NCZXYQLZKRPXQ5OFYYU6VB7

not attested not anchored not stored refs pending

Reconstructing Strings from Substrings with Quantum Queries

Fran\c{c}ois Le Gall, Harumichi Nishimura, Junichi Teruyama, Kazuo Iwama, Richard Cleve, Seiichiro Tani, Shigeru Yamashita

arxiv:1204.4691 v1 · 2012-04-20 · quant-ph · cs.CC

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6M4NCZXYQLZKRPXQ5OFYYU6VB7}

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	2026-05-18T01:14:09.711102Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f338d166f882f2a8bef0eb8b8c53d50fdd265d70790245b8f2030e09e897f931

Aliases

arxiv: 1204.4691 · arxiv_version: 1204.4691v1 · doi: 10.48550/arxiv.1204.4691 · pith_short_12: 6M4NCZXYQLZK · pith_short_16: 6M4NCZXYQLZKRPXQ · pith_short_8: 6M4NCZXY

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/6M4NCZXYQLZKRPXQ5OFYYU6VB7 \
  | 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: f338d166f882f2a8bef0eb8b8c53d50fdd265d70790245b8f2030e09e897f931

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8c9d4c0a31e8ea496c932bcbf17b41e28149bc4d4f0171bf97909e085f810334",
    "cross_cats_sorted": [
      "cs.CC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2012-04-20T18:13:34Z",
    "title_canon_sha256": "36b09801b27b758f451e3348e62c1aba39784784b8982e94642f6471a306af92"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.4691",
    "kind": "arxiv",
    "version": 1
  }
}