Pith Number

pith:VCB4NEVA

pith:2018:VCB4NEVA3CBIPB2LX4UK6FU246

not attested not anchored not stored refs pending

Unambiguous Forest Factorization

Paul Gastin, Shankara Narayanan Krishna

arxiv:1810.07285 v1 · 2018-10-03 · cs.FL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VCB4NEVA3CBIPB2LX4UK6FU246}

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	2026-05-18T00:02:58.931363Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a883c692a0d88287874bbf28af169ae7b7e2e34058f9009b8cd6a9b75f87b185

Aliases

arxiv: 1810.07285 · arxiv_version: 1810.07285v1 · doi: 10.48550/arxiv.1810.07285 · pith_short_12: VCB4NEVA3CBI · pith_short_16: VCB4NEVA3CBIPB2L · pith_short_8: VCB4NEVA

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/VCB4NEVA3CBIPB2LX4UK6FU246 \
  | 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: a883c692a0d88287874bbf28af169ae7b7e2e34058f9009b8cd6a9b75f87b185

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5c94be4a51e2e34afc40cf0809e1994e06619f4c58b7ba67775ecb941c461459",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.FL",
    "submitted_at": "2018-10-03T15:36:34Z",
    "title_canon_sha256": "4823f8deaca8dd1bdf5d36c25903d27d7ccf4694cb980dfeca02cb81dc4b2590"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.07285",
    "kind": "arxiv",
    "version": 1
  }
}