Pith Number

pith:D2ZQW4VY

pith:2019:D2ZQW4VYPO773IST7XAFJJJ2QI

not attested not anchored not stored refs pending

From Active Contours to Minimal Geodesic Paths: New Solutions to Active Contours Problems by Eikonal Equations

Da Chen, Laurent D. Cohen

arxiv:1907.09828 v2 · 2019-07-23 · 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{D2ZQW4VYPO773IST7XAFJJJ2QI}

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.

Cited by

1 paper in Pith

Equivariant Eikonal Neural Networks: Grid-Free, Scalable Travel-Time Prediction on Homogeneous Spaces

Receipt and verification

First computed	2026-07-05T00:07:36.944730Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1eb30b72b87bbffda253fdc054a53a82339e34f1d23b4b224506926f5e9f0b34

Aliases

arxiv: 1907.09828 · arxiv_version: 1907.09828v2 · doi: 10.48550/arxiv.1907.09828 · pith_short_12: D2ZQW4VYPO77 · pith_short_16: D2ZQW4VYPO773IST · pith_short_8: D2ZQW4VY

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/D2ZQW4VYPO773IST7XAFJJJ2QI \
  | 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: 1eb30b72b87bbffda253fdc054a53a82339e34f1d23b4b224506926f5e9f0b34

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c8dd0a6653115515fd6a56885c95bd74e9918554ac08057540e612a17a8e319d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2019-07-23T11:44:51Z",
    "title_canon_sha256": "3359060a85ec9908ef8999f401d0d27d79acab2a9370cb634120a652f46d567b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.09828",
    "kind": "arxiv",
    "version": 2
  }
}