Pith Number

pith:PDCJPHKH

pith:2018:PDCJPHKHZJBRIQ6ICF3GUQOI4J

not attested not anchored not stored refs pending

FRESH: Fr\'echet Similarity with Hashing

Anne Driemel, Francesco Silvestri, Matteo Ceccarello

arxiv:1809.02350 v3 · 2018-09-07 · cs.CG · 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{PDCJPHKHZJBRIQ6ICF3GUQOI4J}

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	2026-05-17T23:44:07.696409Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

78c4979d47ca431443c811766a41c8e241fa299b9644364b9fc0b0b836e6e277

Aliases

arxiv: 1809.02350 · arxiv_version: 1809.02350v3 · doi: 10.48550/arxiv.1809.02350 · pith_short_12: PDCJPHKHZJBR · pith_short_16: PDCJPHKHZJBRIQ6I · pith_short_8: PDCJPHKH

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/PDCJPHKHZJBRIQ6ICF3GUQOI4J \
  | 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: 78c4979d47ca431443c811766a41c8e241fa299b9644364b9fc0b0b836e6e277

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2163d7509f375731aa424a0925d86e51d34eddccc0e95c681f4fe9c1325d811a",
    "cross_cats_sorted": [
      "cs.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2018-09-07T08:29:18Z",
    "title_canon_sha256": "6743e838c7193a6ab987f14219d52d27abb6072c258abafd674c71eefd98b912"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.02350",
    "kind": "arxiv",
    "version": 3
  }
}