Pith Number

pith:RIG3RISX

pith:2019:RIG3RISXS7SNO2PS3P7PUH3QWX

not attested not anchored not stored refs pending

Structurally optimized shells

Denis Zorin, Francisca Gil-Ureta, Nico Pietroni

arxiv:1904.12240 v1 · 2019-04-28 · cs.GR · cs.CG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RIG3RISXS7SNO2PS3P7PUH3QWX}

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	2026-05-17T23:47:38.598026Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8a0db8a25797e4d769f2dbfefa1f70b5ff6b0f1c5d82fb431cc309dda224fe13

Aliases

arxiv: 1904.12240 · arxiv_version: 1904.12240v1 · doi: 10.48550/arxiv.1904.12240 · pith_short_12: RIG3RISXS7SN · pith_short_16: RIG3RISXS7SNO2PS · pith_short_8: RIG3RISX

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/RIG3RISXS7SNO2PS3P7PUH3QWX \
  | 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: 8a0db8a25797e4d769f2dbfefa1f70b5ff6b0f1c5d82fb431cc309dda224fe13

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "850e670a26e7b8795288431bbe5c9d5acc20b3acb4e452c46bb69c1023a00a57",
    "cross_cats_sorted": [
      "cs.CG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.GR",
    "submitted_at": "2019-04-28T01:41:56Z",
    "title_canon_sha256": "c23fe0c3657501b3853ff51642c12a72639863857545c4974763e86a25e702f1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.12240",
    "kind": "arxiv",
    "version": 1
  }
}