Pith Number

pith:YM3SQPP7

pith:2018:YM3SQPP7P3JCB7BQUHWTHHM2XA

not attested not anchored not stored refs pending

Graph Comparison via the Non-backtracking Spectrum

Andrew Mellor, Angelica Grusovin

arxiv:1812.05457 v1 · 2018-12-13 · cs.SI · nlin.AO · physics.data-an

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YM3SQPP7P3JCB7BQUHWTHHM2XA}

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	2026-05-17T23:44:58.150190Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c337283dff7ed220fc30a1ed339d9ab827a62af8ee31e2b23c0d06585d9ba3ea

Aliases

arxiv: 1812.05457 · arxiv_version: 1812.05457v1 · doi: 10.48550/arxiv.1812.05457 · pith_short_12: YM3SQPP7P3JC · pith_short_16: YM3SQPP7P3JCB7BQ · pith_short_8: YM3SQPP7

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/YM3SQPP7P3JCB7BQUHWTHHM2XA \
  | 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: c337283dff7ed220fc30a1ed339d9ab827a62af8ee31e2b23c0d06585d9ba3ea

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e0338efb22ae4987ccbe42cd260ed1b888157fd5660f910904f054dcf3b09019",
    "cross_cats_sorted": [
      "nlin.AO",
      "physics.data-an"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SI",
    "submitted_at": "2018-12-13T14:39:35Z",
    "title_canon_sha256": "0608ef897de6609820f729914da469a474455be79486a8ad5f590b77b0879a59"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.05457",
    "kind": "arxiv",
    "version": 1
  }
}