Pith Number

pith:YGZ3TAJN

pith:2019:YGZ3TAJN5SS2FLWWNJKBLNOADG

not attested not anchored not stored refs pending

Actor-Critic Instance Segmentation

Constantin Rothkopf, Nikita Araslanov, Stefan Roth

arxiv:1904.05126 v1 · 2019-04-10 · cs.CV · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YGZ3TAJN5SS2FLWWNJKBLNOADG}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-17T23:48:54.069882Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c1b3b9812deca5a2aed66a5415b5c0198f821e31d2e8c5763f6678a9aea8e1e1

Aliases

arxiv: 1904.05126 · arxiv_version: 1904.05126v1 · doi: 10.48550/arxiv.1904.05126 · pith_short_12: YGZ3TAJN5SS2 · pith_short_16: YGZ3TAJN5SS2FLWW · pith_short_8: YGZ3TAJN

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/YGZ3TAJN5SS2FLWWNJKBLNOADG \
  | 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: c1b3b9812deca5a2aed66a5415b5c0198f821e31d2e8c5763f6678a9aea8e1e1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5d469779253cb9553095d26fd59fa5f28e91a2eb249700b099f9ab3228615834",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2019-04-10T12:08:13Z",
    "title_canon_sha256": "9d49076e204259ed89e33732a482826bc7017615184671858054fb43e99c2370"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.05126",
    "kind": "arxiv",
    "version": 1
  }
}