Pith Number

pith:2FIN5T7C

pith:2011:2FIN5T7CLF5X4WY4U4BGO4YS6A

not attested not anchored not stored refs pending

Computing a Knot Invariant as a Constraint Satisfaction Problem

Chihiro H. Nakajima, Takahiro Sakaue

arxiv:1111.1060 v1 · 2011-11-04 · cond-mat.dis-nn · cond-mat.stat-mech · 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{2FIN5T7CLF5X4WY4U4BGO4YS6A}

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	2026-05-18T01:59:45.609834Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d150decfe2597b7e5b1ca702677312f0068c2163da37fdb8e08ea206f8751229

Aliases

arxiv: 1111.1060 · arxiv_version: 1111.1060v1 · doi: 10.48550/arxiv.1111.1060 · pith_short_12: 2FIN5T7CLF5X · pith_short_16: 2FIN5T7CLF5X4WY4 · pith_short_8: 2FIN5T7C

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/2FIN5T7CLF5X4WY4U4BGO4YS6A \
  | 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: d150decfe2597b7e5b1ca702677312f0068c2163da37fdb8e08ea206f8751229

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "950567189e6dfc9314b0591188971ec4f82b21dddc6dce910916a467acd3db26",
    "cross_cats_sorted": [
      "cond-mat.stat-mech",
      "cs.CC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.dis-nn",
    "submitted_at": "2011-11-04T07:47:10Z",
    "title_canon_sha256": "db800ecee30a5d96c6c9b255cab7a21b67481f37d4ce6741033c04bfada63480"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1111.1060",
    "kind": "arxiv",
    "version": 1
  }
}