Pith Number

pith:ZLS4Z6HQ

pith:2019:ZLS4Z6HQDRCQP3EUZJXO5LTRSE

not attested not anchored not stored refs pending

Weakly Labeling the Antarctic: The Penguin Colony Case

Bento Gon\c{c}alves, Dimitris Samaras, Heather Lynch, Hieu Le

arxiv:1905.03313 v2 · 2019-05-08 · 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{ZLS4Z6HQDRCQP3EUZJXO5LTRSE}

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	2026-05-17T23:45:51.560933Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cae5ccf8f01c4507ec94ca6eeeae71912580318f2c6549e715e211281d561d4c

Aliases

arxiv: 1905.03313 · arxiv_version: 1905.03313v2 · doi: 10.48550/arxiv.1905.03313 · pith_short_12: ZLS4Z6HQDRCQ · pith_short_16: ZLS4Z6HQDRCQP3EU · pith_short_8: ZLS4Z6HQ

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/ZLS4Z6HQDRCQP3EUZJXO5LTRSE \
  | 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: cae5ccf8f01c4507ec94ca6eeeae71912580318f2c6549e715e211281d561d4c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "03fc9fc4fec436bd6db5ad11055be4835ea82a33a3b19400a5a096738536064f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2019-05-08T20:03:18Z",
    "title_canon_sha256": "80a47eb8d9f52279254595e019cd3f3a34cddf3a99f14a5ce73a353082edc3b4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.03313",
    "kind": "arxiv",
    "version": 2
  }
}