Pith Number

pith:IMQEZDYZ

pith:2018:IMQEZDYZRNJZZWQ7IAVKU6VRSP

not attested not anchored not stored refs pending

Convex Shape Priors for Level Set Representation

Shousheng Luo, Xue-Cheng Tai

arxiv:1811.04715 v1 · 2018-11-12 · math.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IMQEZDYZRNJZZWQ7IAVKU6VRSP}

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	2026-05-18T00:01:04.275059Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

43204c8f198b539cda1f402aaa7ab193d48b50ac49a3bfb6fd60597ffc5be066

Aliases

arxiv: 1811.04715 · arxiv_version: 1811.04715v1 · doi: 10.48550/arxiv.1811.04715 · pith_short_12: IMQEZDYZRNJZ · pith_short_16: IMQEZDYZRNJZZWQ7 · pith_short_8: IMQEZDYZ

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/IMQEZDYZRNJZZWQ7IAVKU6VRSP \
  | 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: 43204c8f198b539cda1f402aaa7ab193d48b50ac49a3bfb6fd60597ffc5be066

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d91952c43905b284e145b48307525a22ad5e670122a2363da50127675c2f4c8b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-11-12T13:30:19Z",
    "title_canon_sha256": "aadc2660e82438d4313caf8ff77358ce596fc611617572318dc0439410aa2907"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.04715",
    "kind": "arxiv",
    "version": 1
  }
}