Pith Number

pith:MOWHVOLL

pith:2016:MOWHVOLLSSZMKIXCVS32MP5ATZ

not attested not anchored not stored refs pending

Position paper: Towards an observer-oriented theory of shape comparison

Patrizio Frosini

arxiv:1603.02008 v1 · 2016-03-07 · cs.CG · cs.CV · math.AT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MOWHVOLLSSZMKIXCVS32MP5ATZ}

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	2026-05-18T01:19:31.870152Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

63ac7ab96b94b2c522e2acb7a63fa09e612e31db0c85619ac03f52396e366ea2

Aliases

arxiv: 1603.02008 · arxiv_version: 1603.02008v1 · doi: 10.48550/arxiv.1603.02008 · pith_short_12: MOWHVOLLSSZM · pith_short_16: MOWHVOLLSSZMKIXC · pith_short_8: MOWHVOLL

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/MOWHVOLLSSZMKIXCVS32MP5ATZ \
  | 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: 63ac7ab96b94b2c522e2acb7a63fa09e612e31db0c85619ac03f52396e366ea2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4657249ebfac92000b786cc68ebbb7d875c8b8d14bd80cf4510c36e18f990f74",
    "cross_cats_sorted": [
      "cs.CV",
      "math.AT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2016-03-07T11:16:28Z",
    "title_canon_sha256": "32bb5336279c59df8f708431f8a3b3c3ab5b6acf21fa1a99503f768a9e1fb2ef"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1603.02008",
    "kind": "arxiv",
    "version": 1
  }
}