Pith Number

pith:ZQ7C5NDZ

pith:2017:ZQ7C5NDZ3RQOTDZV73PR6DIMZH

not attested not anchored not stored refs pending

Deep Image Matting

Brian Price, Ning Xu, Scott Cohen, Thomas Huang

arxiv:1703.03872 v3 · 2017-03-10 · 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{ZQ7C5NDZ3RQOTDZV73PR6DIMZH}

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	2026-05-18T00:46:34.663593Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cc3e2eb479dc60e98f35fedf1f0d0cc9dbcf50b5dd3d5c382777308ebe225f42

Aliases

arxiv: 1703.03872 · arxiv_version: 1703.03872v3 · doi: 10.48550/arxiv.1703.03872 · pith_short_12: ZQ7C5NDZ3RQO · pith_short_16: ZQ7C5NDZ3RQOTDZV · pith_short_8: ZQ7C5NDZ

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/ZQ7C5NDZ3RQOTDZV73PR6DIMZH \
  | 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: cc3e2eb479dc60e98f35fedf1f0d0cc9dbcf50b5dd3d5c382777308ebe225f42

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "42b7bf4785d569b76c8541b362c9f15642dc55267b6436fcb0e9291f7cb76bb9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2017-03-10T23:43:17Z",
    "title_canon_sha256": "b5b1343ddc95b9f6a54ad57287abb8e0ad000404d7d16e15248d837e3cf5ec8c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1703.03872",
    "kind": "arxiv",
    "version": 3
  }
}