Pith Number

pith:5P23HKPD

pith:2017:5P23HKPDENL64JC3WHNVNSFNJU

not attested not anchored not stored refs pending

Forbidden branches in trees with minimal atom-bond connectivity index

Carlos M. da Fonseca, Darko Dimitrov, Zhibin Du

arxiv:1706.08680 v1 · 2017-06-27 · cs.DM

Open paper page JSON What is a Pith Number?

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

Receipt and verification

First computed	2026-05-18T00:41:31.371424Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ebf5b3a9e32357ee245bb1db56c8ad4d21b5c6f6097004339e816ad0fcb8ed54

Aliases

arxiv: 1706.08680 · arxiv_version: 1706.08680v1 · doi: 10.48550/arxiv.1706.08680

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/5P23HKPDENL64JC3WHNVNSFNJU \
  | 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: ebf5b3a9e32357ee245bb1db56c8ad4d21b5c6f6097004339e816ad0fcb8ed54

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "75cff53538a4b5f2327058a233aeff0746a3afe6f1ed7b1d8f4fe4d3315aa96f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2017-06-27T06:20:24Z",
    "title_canon_sha256": "90b85a3a9c4cf54aee0a2fbcc241a269eba1f43da5e6d7a88ec57068741b8491"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1706.08680",
    "kind": "arxiv",
    "version": 1
  }
}