Pith Number

pith:HT2GP3F7

pith:2003:HT2GP3F76EHGZVEQ4J44K4VFZE

not attested not anchored not stored refs pending

Universality in the merging dynamics of parametric active contours: a study in MRI-based lung segmentation

Amit K. Chattopadhyay, Nilanjan Ray, Scott T. Acton

arxiv:cond-mat/0309336 v1 · 2003-09-13 · cond-mat.soft · cond-mat.stat-mech · q-bio.OT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HT2GP3F76EHGZVEQ4J44K4VFZE}

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	2026-05-18T01:39:59.212008Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3cf467ecbff10e6cd490e279c572a5c929b85390bb92f38a44b9df36030e70dc

Aliases

arxiv: cond-mat/0309336 · arxiv_version: cond-mat/0309336v1 · doi: 10.48550/arxiv.cond-mat/0309336 · pith_short_12: HT2GP3F76EHG · pith_short_16: HT2GP3F76EHGZVEQ · pith_short_8: HT2GP3F7

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/HT2GP3F76EHGZVEQ4J44K4VFZE \
  | 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: 3cf467ecbff10e6cd490e279c572a5c929b85390bb92f38a44b9df36030e70dc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f1e8e569b16be7f3bfd57897aff9a67dccc54f6096213956e86e141e0428573f",
    "cross_cats_sorted": [
      "cond-mat.stat-mech",
      "q-bio.OT"
    ],
    "license": "",
    "primary_cat": "cond-mat.soft",
    "submitted_at": "2003-09-13T17:19:40Z",
    "title_canon_sha256": "0b0cb6afe17fd41b261dafef44d2dcab3a28c2bb9e8d35248fb7edd3bde907e5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "cond-mat/0309336",
    "kind": "arxiv",
    "version": 1
  }
}