Pith Number

pith:BIF5BWMH

pith:2009:BIF5BWMHQ3I4SB2HHLAXSZR3YS

not attested not anchored not stored refs pending

Comparison of Galled Trees

Francesc Rossello, Gabriel Cardona, Gabriel Valiente, Merce Llabres

arxiv:0906.1166 v1 · 2009-06-05 · q-bio.PE · cs.CE · cs.DM · 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{BIF5BWMHQ3I4SB2HHLAXSZR3YS}

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	2026-07-04T15:43:23.605738Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0a0bd0d98786d1c907473ac179663bc4ba8cb99560a7171052bda98500765789

Aliases

arxiv: 0906.1166 · arxiv_version: 0906.1166v1 · doi: 10.48550/arxiv.0906.1166 · pith_short_12: BIF5BWMHQ3I4 · pith_short_16: BIF5BWMHQ3I4SB2H · pith_short_8: BIF5BWMH

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/BIF5BWMHQ3I4SB2HHLAXSZR3YS \
  | 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: 0a0bd0d98786d1c907473ac179663bc4ba8cb99560a7171052bda98500765789

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c99fff7cd963cb2255eb7ac3042258816738b4e5c573a58e4201cbea50bdfe6b",
    "cross_cats_sorted": [
      "cs.CE",
      "cs.DM",
      "q-bio.QM"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/3.0/",
    "primary_cat": "q-bio.PE",
    "submitted_at": "2009-06-05T16:55:47Z",
    "title_canon_sha256": "8f46543677dfe589ba27c95b112e5d1812fb4848612ba0c0dc84e1ecec537b64"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0906.1166",
    "kind": "arxiv",
    "version": 1
  }
}