Pith Number

pith:AHSPYSKM

pith:2019:AHSPYSKMH5ZGUZUBMYBN3BBWLM

not attested not anchored not stored refs pending

Using Deep Learning to Count Albatrosses from Space

Ellen Bowler, Geoffrey French, Michal Mackiewicz, Peter T. Fretwell

arxiv:1907.02040 v1 · 2019-07-03 · cs.CV

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

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	2026-05-17T23:41:31.797163Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

01e4fc494c3f726a66816602dd84365b22fc59b9607e1e6dc96a3909b8302b8e

Aliases

arxiv: 1907.02040 · arxiv_version: 1907.02040v1 · doi: 10.48550/arxiv.1907.02040 · pith_short_12: AHSPYSKMH5ZG · pith_short_16: AHSPYSKMH5ZGUZUB · pith_short_8: AHSPYSKM

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/AHSPYSKMH5ZGUZUBMYBN3BBWLM \
  | 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: 01e4fc494c3f726a66816602dd84365b22fc59b9607e1e6dc96a3909b8302b8e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0c43fa5b09c034a45555f1462088f859f4fc414f6f3e5f82a659286ddeacc9b8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2019-07-03T17:09:25Z",
    "title_canon_sha256": "363db364070942ce5d527f9c5e43fefc76aae534736a1a2609efa3d678345ebc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.02040",
    "kind": "arxiv",
    "version": 1
  }
}