Pith Number

pith:663VOBSS

pith:2022:663VOBSSG7S3PEVDIZ54FPULVE

not attested not anchored not stored refs pending

Shape spaces: From geometry to biological plausibility

Laurent Younes, Nicolas Charon

arxiv:2205.01237 v1 · 2022-05-02 · math.DG · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{663VOBSSG7S3PEVDIZ54FPULVE}

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	2026-07-05T04:20:02.566208Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f7b757065237e5b792a3467bc2be8ba93ced963fdc4dcf231f19bf5219f2fb3c

Aliases

arxiv: 2205.01237 · arxiv_version: 2205.01237v1 · doi: 10.48550/arxiv.2205.01237 · pith_short_12: 663VOBSSG7S3 · pith_short_16: 663VOBSSG7S3PEVD · pith_short_8: 663VOBSS

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/663VOBSSG7S3PEVDIZ54FPULVE \
  | 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: f7b757065237e5b792a3467bc2be8ba93ced963fdc4dcf231f19bf5219f2fb3c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "83a413842dc3e96416f4b0fce96da987e6396397f27f54b944cf8ec8760a7dd3",
    "cross_cats_sorted": [
      "math.OC"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2022-05-02T22:09:11Z",
    "title_canon_sha256": "ccbf443f333ba0678e52c14f475f2848fe79ad6fc48ac4b9fe04e3bc272b89f1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2205.01237",
    "kind": "arxiv",
    "version": 1
  }
}