Pith Number

pith:F5IPKHFN

pith:2019:F5IPKHFN3BEU5OKJ22D6I6DFKK

not attested not anchored not stored refs pending

Learning Transparent Object Matting

Guanying Chen, Kai Han, Kwan-Yee K. Wong

arxiv:1907.11544 v1 · 2019-07-25 · 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{F5IPKHFN3BEU5OKJ22D6I6DFKK}

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	2026-05-17T23:39:28.747837Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2f50f51cadd8494eb949d687e47865528417e10f354720993e790c2cd8400025

Aliases

arxiv: 1907.11544 · arxiv_version: 1907.11544v1 · doi: 10.48550/arxiv.1907.11544 · pith_short_12: F5IPKHFN3BEU · pith_short_16: F5IPKHFN3BEU5OKJ · pith_short_8: F5IPKHFN

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/F5IPKHFN3BEU5OKJ22D6I6DFKK \
  | 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: 2f50f51cadd8494eb949d687e47865528417e10f354720993e790c2cd8400025

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "93574c603752965229a0de6599e912beb407dd2521360af39d658396ea027635",
    "cross_cats_sorted": [
      "eess.IV"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2019-07-25T11:14:46Z",
    "title_canon_sha256": "6820b8caa73b7a3ab08b4b3279930c049e14b99e1b5a52a8953d3b2d06ae9d72"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.11544",
    "kind": "arxiv",
    "version": 1
  }
}