Pith Number

pith:JFOQCKLC

pith:2017:JFOQCKLCK5RKUL3OTLEG3Y6SWM

not attested not anchored not stored refs pending

L1-regularized Reconstruction Error as Alpha Matte

Deepu Rajan, Hisham Cholakkal, Jubin Johnson

arxiv:1702.02744 v1 · 2017-02-09 · 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{JFOQCKLCK5RKUL3OTLEG3Y6SWM}

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	2026-05-18T00:47:03.567649Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

495d0129625762aa2f6e9ac86de3d2b318ba657eeafb8aa47b9a000a6370fa0b

Aliases

arxiv: 1702.02744 · arxiv_version: 1702.02744v1 · doi: 10.48550/arxiv.1702.02744 · pith_short_12: JFOQCKLCK5RK · pith_short_16: JFOQCKLCK5RKUL3O · pith_short_8: JFOQCKLC

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/JFOQCKLCK5RKUL3OTLEG3Y6SWM \
  | 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: 495d0129625762aa2f6e9ac86de3d2b318ba657eeafb8aa47b9a000a6370fa0b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a7107a6f255a7ee2fe9e99f63015c18d0aa6a559790f25da8318b6f74b27636f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2017-02-09T08:29:58Z",
    "title_canon_sha256": "962fb82ec56a01a1266f74d3ab64ce83b3aca1b4f7b91218608a4476027b6cfa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.02744",
    "kind": "arxiv",
    "version": 1
  }
}