Pith Number

pith:3YJLJG2W

pith:2023:3YJLJG2W4PCEO7QZCYEN4HHB3V

not attested not anchored not stored refs pending

Evidence of social learning across symbolic cultural barriers in sperm whales

Ant\'onio Leit\~ao, David Gruber, Giovanni Petri, Maxime Lucas, Michael Bronstein, Shane Gero, Simone Poetto, Taylor A. Hersh

arxiv:2307.05304 v4 · 2023-07-07 · cs.SI · stat.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3YJLJG2W4PCEO7QZCYEN4HHB3V}

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	2026-07-05T10:33:01.909192Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

de12b49b56e3c4477e191608de1ce1dd7e0c2f19b0820e594233f55a80c82c24

Aliases

arxiv: 2307.05304 · arxiv_version: 2307.05304v4 · doi: 10.48550/arxiv.2307.05304 · pith_short_12: 3YJLJG2W4PCE · pith_short_16: 3YJLJG2W4PCEO7QZ · pith_short_8: 3YJLJG2W

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/3YJLJG2W4PCEO7QZCYEN4HHB3V \
  | 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: de12b49b56e3c4477e191608de1ce1dd7e0c2f19b0820e594233f55a80c82c24

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "784851aac177bb1e770b2d66471ebdcfdc9b0add6c60977eb81a5ac7c857302c",
    "cross_cats_sorted": [
      "stat.AP"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.SI",
    "submitted_at": "2023-07-07T16:46:25Z",
    "title_canon_sha256": "d1545a4156430d5241e37ef6b893947e1d313b6e99c99f97414ec84430793364"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2307.05304",
    "kind": "arxiv",
    "version": 4
  }
}