Pith Number

pith:5PDUQHTR

pith:2014:5PDUQHTRNYJH5X72YBZLZ365T5

not attested not anchored not stored refs pending

Spanning trees with nonseparating paths

C\'esar Hern\'andez-V\'elez, Cristina G. Fernandes, Jos\'e C. de Pina, Orlando Lee

arxiv:1409.4239 v1 · 2014-09-15 · 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{5PDUQHTRNYJH5X72YBZLZ365T5}

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	2026-05-17T23:47:44.671566Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ebc7481e716e127edffac072bcefdd9f4492a1c8c3f24cf2c7a0d7687f6ddcd8

Aliases

arxiv: 1409.4239 · arxiv_version: 1409.4239v1 · doi: 10.48550/arxiv.1409.4239 · pith_short_12: 5PDUQHTRNYJH · pith_short_16: 5PDUQHTRNYJH5X72 · pith_short_8: 5PDUQHTR

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/5PDUQHTRNYJH5X72YBZLZ365T5 \
  | 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: ebc7481e716e127edffac072bcefdd9f4492a1c8c3f24cf2c7a0d7687f6ddcd8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4d7426106bf580d6d89e9428a524cd74adf0c95b96405f7f1e188f585df041a9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2014-09-15T14:45:01Z",
    "title_canon_sha256": "03d674a4a972841c7213d65fcee0014047c7465b6fa9cad66ee46bda89546f76"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1409.4239",
    "kind": "arxiv",
    "version": 1
  }
}