Pith Number

pith:PZEUOI7E

pith:2025:PZEUOI7EFIL4KFSJLXSP3HZZY6

not attested not anchored not stored refs pending

From Basic Affordances to Symbolic Thought: A Computational Phylogenesis of Biological Intelligence

John E. Hummel, Rachel F. Heaton

arxiv:2508.15082 v1 · 2025-08-20 · cs.NE · cs.AI · cs.LG · q-bio.NC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PZEUOI7EFIL4KFSJLXSP3HZZY6}

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	2026-07-05T11:57:06.180102Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7e494723e42a17c516495de4fd9f39c78323edc91b43791f3b5f1f532eaf82cc

Aliases

arxiv: 2508.15082 · arxiv_version: 2508.15082v1 · doi: 10.48550/arxiv.2508.15082 · pith_short_12: PZEUOI7EFIL4 · pith_short_16: PZEUOI7EFIL4KFSJ · pith_short_8: PZEUOI7E

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/PZEUOI7EFIL4KFSJLXSP3HZZY6 \
  | 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: 7e494723e42a17c516495de4fd9f39c78323edc91b43791f3b5f1f532eaf82cc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "af50942ce414120a68ed897bc2b62101eb461b395593c06adc72e5783fb52ad9",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.LG",
      "q-bio.NC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.NE",
    "submitted_at": "2025-08-20T21:38:06Z",
    "title_canon_sha256": "76d1d7fea852fdf656d9c7ce18931550a437ec84d5793cb338588ee533f911db"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2508.15082",
    "kind": "arxiv",
    "version": 1
  }
}