Pith Number

pith:HC4ZGZUM

pith:1997:HC4ZGZUMQCU7KMU6O3R7V2OSZ3

not attested not anchored not stored refs pending

Quantum Algorithm for the Collision Problem

(2) Odense University), Alain Tapp (1) ((1) Universite de Montreal, Gilles Brassard (1), Peter Hoyer (2)

arxiv:quant-ph/9705002 v1 · 1997-05-01 · 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{HC4ZGZUMQCU7KMU6O3R7V2OSZ3}

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.

Cited by

2 papers in Pith

Future-Proofing Cloud Security Against Quantum Attacks: Risk, Transition, and Mitigation Strategies

Tight Quantum Lower Bound for k-Distinctness

Receipt and verification

First computed	2026-05-18T00:53:12.784943Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

38b993668c80a9f5329e76e3fae9d2cecd34d6d9e673411c66a110ec9edf8e49

Aliases

arxiv: quant-ph/9705002 · arxiv_version: quant-ph/9705002v1 · doi: 10.48550/arxiv.quant-ph/9705002 · pith_short_12: HC4ZGZUMQCU7 · pith_short_16: HC4ZGZUMQCU7KMU6 · pith_short_8: HC4ZGZUM

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/HC4ZGZUMQCU7KMU6O3R7V2OSZ3 \
  | 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: 38b993668c80a9f5329e76e3fae9d2cecd34d6d9e673411c66a110ec9edf8e49

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "93f20cd9d82ecbd53e043308612038e59729243d601fa57e761c1cefb37f22ca",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "1997-05-01T21:59:56Z",
    "title_canon_sha256": "9f96d125bc8fe0edb6973b0bdb5c40215a2b2e336566ba38e0a87c56cc8c315c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/9705002",
    "kind": "arxiv",
    "version": 1
  }
}