Pith Number

pith:CBVQ4ZUZ

pith:2025:CBVQ4ZUZ4DBACAMDGQFPX7QBP3

not attested not anchored not stored refs pending

A hierarchy of blood vessel models, Part I: 3D-1D to 1D

Laurel Ohm, Sarah Strikwerda

arxiv:2507.13316 v1 · 2025-07-17 · math.AP · physics.bio-ph · physics.flu-dyn · q-bio.TO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CBVQ4ZUZ4DBACAMDGQFPX7QBP3}

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	2026-07-05T11:38:59.028394Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

106b0e6699e0c2010183340afbfe017ec9f6ba15c40ebf4f25fe7eec6d561786

Aliases

arxiv: 2507.13316 · arxiv_version: 2507.13316v1 · doi: 10.48550/arxiv.2507.13316 · pith_short_12: CBVQ4ZUZ4DBA · pith_short_16: CBVQ4ZUZ4DBACAMD · pith_short_8: CBVQ4ZUZ

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/CBVQ4ZUZ4DBACAMDGQFPX7QBP3 \
  | 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: 106b0e6699e0c2010183340afbfe017ec9f6ba15c40ebf4f25fe7eec6d561786

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "be151a469def4f03ce834bb4aa6b4dfb5b85a5c9584d5ef1574798f3cc1fcc6c",
    "cross_cats_sorted": [
      "physics.bio-ph",
      "physics.flu-dyn",
      "q-bio.TO"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2025-07-17T17:34:05Z",
    "title_canon_sha256": "5d365e815eab76a668eafce411d41eb91425d7494f5fe365a81c7ab775002dd4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2507.13316",
    "kind": "arxiv",
    "version": 1
  }
}