Pith Number

pith:QP2KCEGF

pith:2018:QP2KCEGFEUJATQ3T4V5DHFINR6

not attested not anchored not stored refs pending

On some new hook-content identities

Alessandro Bisio, Michal Sedl\'ak

arxiv:1809.02008 v1 · 2018-09-06 · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QP2KCEGFEUJATQ3T4V5DHFINR6}

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	2026-05-18T00:06:21.530042Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

83f4a110c5251209c373e57a33950d8fb7edc75b94b54fc85ffc01bbeffa7798

Aliases

arxiv: 1809.02008 · arxiv_version: 1809.02008v1 · doi: 10.48550/arxiv.1809.02008 · pith_short_12: QP2KCEGFEUJA · pith_short_16: QP2KCEGFEUJATQ3T · pith_short_8: QP2KCEGF

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/QP2KCEGFEUJATQ3T4V5DHFINR6 \
  | 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: 83f4a110c5251209c373e57a33950d8fb7edc75b94b54fc85ffc01bbeffa7798

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8f83af4c487f31b6a2e5b1922f266b3a18ee4a7bb312dbe1485362117c24e53f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2018-09-06T14:22:52Z",
    "title_canon_sha256": "88aef6c59b4a0cae2c054a8a79dbc7f189c75ee533895d3e00854f0bbc591f4e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.02008",
    "kind": "arxiv",
    "version": 1
  }
}