Pith Number

pith:F3DRTX7G

pith:2020:F3DRTX7GFAX5AFWFZTVGTIDAZH

not attested not anchored not stored refs pending

A framework for studying behavioral evolution by reconstructing ancestral repertoires

Baohua Zhou, Catalina Rivera, Dami\'an G. Hern\'andez, David L. Stern, Gordon J. Berman, Jessica Cande

arxiv:2007.09689 v1 · 2020-07-19 · q-bio.PE · physics.bio-ph · q-bio.QM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{F3DRTX7GFAX5AFWFZTVGTIDAZH}

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	2026-07-05T01:20:28.088399Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2ec719dfe6282fd016c5ccea69a060c9c21a55288f91608758524e74a5af692c

Aliases

arxiv: 2007.09689 · arxiv_version: 2007.09689v1 · doi: 10.48550/arxiv.2007.09689 · pith_short_12: F3DRTX7GFAX5 · pith_short_16: F3DRTX7GFAX5AFWF · pith_short_8: F3DRTX7G

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/F3DRTX7GFAX5AFWFZTVGTIDAZH \
  | 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: 2ec719dfe6282fd016c5ccea69a060c9c21a55288f91608758524e74a5af692c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "07e133a58b4ae131f34e6b61bd2ae33ac0666f7c1024de617297b15e96c983be",
    "cross_cats_sorted": [
      "physics.bio-ph",
      "q-bio.QM"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "q-bio.PE",
    "submitted_at": "2020-07-19T15:13:52Z",
    "title_canon_sha256": "8daa881e2341d9b119ab9edd7c8172ef52c112711c85fe32d82acb8245fe5288"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2007.09689",
    "kind": "arxiv",
    "version": 1
  }
}