Pith Number

pith:QH42UHKQ

pith:2015:QH42UHKQP3NJKWSZ7ELCXQSUBG

not attested not anchored not stored refs pending

When Six Gates are Not Enough

Lu\'is Cruz-Filipe, Michael Codish, Michael Frank, Peter Schneider-Kamp

arxiv:1508.05737 v1 · 2015-08-24 · 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{QH42UHKQP3NJKWSZ7ELCXQSUBG}

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	2026-05-18T01:09:45.959917Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

81f9aa1d507eda955a59f9162bc25409ab1727627292cf9b8377516a4fbb735a

Aliases

arxiv: 1508.05737 · arxiv_version: 1508.05737v1 · doi: 10.48550/arxiv.1508.05737 · pith_short_12: QH42UHKQP3NJ · pith_short_16: QH42UHKQP3NJKWSZ · pith_short_8: QH42UHKQ

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/QH42UHKQP3NJKWSZ7ELCXQSUBG \
  | 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: 81f9aa1d507eda955a59f9162bc25409ab1727627292cf9b8377516a4fbb735a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "52cd736aff23b7c6182b7056e3fe57595e04a0136095e8b61c3572574dc45069",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2015-08-24T10:04:28Z",
    "title_canon_sha256": "82bb1cdccc21dce467a6bb5cfb859aace0e505365fd2cda4aaef901a1978f7f1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1508.05737",
    "kind": "arxiv",
    "version": 1
  }
}