Pith Number

pith:QJKPLKYN

pith:2020:QJKPLKYNWYEN5V3CLIL2IKF2TU

not attested not anchored not stored refs pending

PyMatting: A Python Library for Alpha Matting

Stefan Conrad, Stefan Harmeling, Thomas Germer, Tobias Uelwer

arxiv:2003.12382 v1 · 2020-03-25 · cs.CV · eess.IV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QJKPLKYNWYEN5V3CLIL2IKF2TU}

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

Gap-Majority Lemmas in Communication Complexity

Receipt and verification

First computed	2026-07-05T02:09:09.186567Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8254f5ab0db608ded7625a17a428ba9d0e159f3ce9396e000288b6b60a6719e0

Aliases

arxiv: 2003.12382 · arxiv_version: 2003.12382v1 · doi: 10.48550/arxiv.2003.12382 · pith_short_12: QJKPLKYNWYEN · pith_short_16: QJKPLKYNWYEN5V3C · pith_short_8: QJKPLKYN

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/QJKPLKYNWYEN5V3CLIL2IKF2TU \
  | 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: 8254f5ab0db608ded7625a17a428ba9d0e159f3ce9396e000288b6b60a6719e0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b0e5733572ce01f6e849b61510b99102388e9a6fcb8e803a66303613e3b41334",
    "cross_cats_sorted": [
      "eess.IV"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2020-03-25T18:46:23Z",
    "title_canon_sha256": "63e2643afc5549358925d7270e9e6da8d0c4e1c9343e3f8f49cbf0318545d63c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2003.12382",
    "kind": "arxiv",
    "version": 1
  }
}