Pith Number

pith:A2QLMEKH

pith:2025:A2QLMEKHPZNATNVNDOYNHZXRNP

not attested not anchored not stored refs pending

Contour Field based Elliptical Shape Prior for the Segment Anything Model

Faqiang Wang, Jun Liu, Li Cui, Xinyu Zhao, Yuping Duan

arxiv:2504.12556 v2 · 2025-04-17 · cs.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{A2QLMEKHPZNATNVNDOYNHZXRNP}

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	2026-06-09T01:05:06.400288Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

06a0b611477e5a09b6ad1bb0d3e6f16be741b9542c4c1751e3f4365a4fdf2997

Aliases

arxiv: 2504.12556 · arxiv_version: 2504.12556v2 · doi: 10.48550/arxiv.2504.12556 · pith_short_12: A2QLMEKHPZNA · pith_short_16: A2QLMEKHPZNATNVN · pith_short_8: A2QLMEKH

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/A2QLMEKHPZNATNVNDOYNHZXRNP \
  | 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: 06a0b611477e5a09b6ad1bb0d3e6f16be741b9542c4c1751e3f4365a4fdf2997

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cd27fd8a035a20200f04d9a032302e40a5cca784dfb5c51f9145c502e181457a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2025-04-17T01:08:24Z",
    "title_canon_sha256": "3fd63eac7224e5dca09a600103ea7a18a295ba819c4fa616dfb1a4b8b234f675"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2504.12556",
    "kind": "arxiv",
    "version": 2
  }
}