Pith Number

pith:5DUBCTQI

pith:2013:5DUBCTQIKFTSNCHDZCV2FSDPRG

not attested not anchored not stored refs pending

Five clarifications about cultural evolution

Liane Gabora

arxiv:1309.2622 v2 · 2013-09-10 · q-bio.PE · 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{5DUBCTQIKFTSNCHDZCV2FSDPRG}

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	2026-05-17T23:41:57.070617Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e8e8114e0851672688e3c8aba2c86f8987b74dae93dad3d58b83dc91e7536a20

Aliases

arxiv: 1309.2622 · arxiv_version: 1309.2622v2 · doi: 10.48550/arxiv.1309.2622 · pith_short_12: 5DUBCTQIKFTS · pith_short_16: 5DUBCTQIKFTSNCHD · pith_short_8: 5DUBCTQI

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/5DUBCTQIKFTSNCHDZCV2FSDPRG \
  | 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: e8e8114e0851672688e3c8aba2c86f8987b74dae93dad3d58b83dc91e7536a20

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "49e5e29d5c1f4098aa18d8c6a0659fad45c8e1b63dd7f666740b6fbf4ebbb86d",
    "cross_cats_sorted": [
      "q-bio.NC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.PE",
    "submitted_at": "2013-09-10T19:31:05Z",
    "title_canon_sha256": "0700064fdc932bdeea5cee73665e462eca38454aba0a52234974478f1d41b6cf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.2622",
    "kind": "arxiv",
    "version": 2
  }
}