Pith Number

pith:LOIMFJCR

pith:2019:LOIMFJCRLO6AB6FVUPN56VWKUZ

not attested not anchored not stored refs pending

Faster way to agony: Discovering hierarchies in directed graphs

Nikolaj Tatti

arxiv:1902.01477 v1 · 2019-02-04 · cs.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LOIMFJCRLO6AB6FVUPN56VWKUZ}

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	2026-05-17T23:54:47.604134Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5b90c2a4515bbc00f8b5a3dbdf56caa6729482d2bc4178be0602dda799b69448

Aliases

arxiv: 1902.01477 · arxiv_version: 1902.01477v1 · doi: 10.48550/arxiv.1902.01477 · pith_short_12: LOIMFJCRLO6A · pith_short_16: LOIMFJCRLO6AB6FV · pith_short_8: LOIMFJCR

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/LOIMFJCRLO6AB6FVUPN56VWKUZ \
  | 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: 5b90c2a4515bbc00f8b5a3dbdf56caa6729482d2bc4178be0602dda799b69448

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6183750c932ae4d53b4acd981a8f03ba6afc2b11fda465f15bd7a06717c2b7d2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2019-02-04T22:12:16Z",
    "title_canon_sha256": "487cd4fbb70c4b7f5ea63a52f920d8c2ff41dc7b97a84fe35133b1d0aa0100c4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.01477",
    "kind": "arxiv",
    "version": 1
  }
}