Pith Number

pith:DPF6CKKC

pith:2009:DPF6CKKCTVYDBKVZIOSH62ZAVP

not attested not anchored not stored refs pending

The quantum query complexity of certification

Andrew M. Childs, Andris Ambainis, Fran\c{c}ois Le Gall, Seiichiro Tani

arxiv:0903.1291 v2 · 2009-03-06 · 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{DPF6CKKCTVYDBKVZIOSH62ZAVP}

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	2026-05-17T23:58:00.078421Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1bcbe129429d7030aab943a47f6b20abc6c505ab4e7e3425e162ceb4fedcea26

Aliases

arxiv: 0903.1291 · arxiv_version: 0903.1291v2 · doi: 10.48550/arxiv.0903.1291 · pith_short_12: DPF6CKKCTVYD · pith_short_16: DPF6CKKCTVYDBKVZ · pith_short_8: DPF6CKKC

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/DPF6CKKCTVYDBKVZIOSH62ZAVP \
  | 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: 1bcbe129429d7030aab943a47f6b20abc6c505ab4e7e3425e162ceb4fedcea26

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "212ed2db3cdb8584f137e3b76e7b4e8da9510c6ad441122e851db565cb12d2b2",
    "cross_cats_sorted": [
      "cs.CC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2009-03-06T21:22:18Z",
    "title_canon_sha256": "6ce044d9aa00f8099bb28c5eb6422cf3318c1f4e0bef03dfff226cf792dd6b8a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0903.1291",
    "kind": "arxiv",
    "version": 2
  }
}