Pith Number

pith:FCYKJL6Y

pith:2012:FCYKJL6Y3IK22VXXXPXGZI7ABF

not attested not anchored not stored refs pending

Skeletal Rigidity of Phylogenetic Trees

Andrej Risteski, Brian Li, Howard Cheng, Satyan L. Devadoss

arxiv:1203.5782 v1 · 2012-03-26 · cs.CG · cs.CE · math.AG · q-bio.PE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FCYKJL6Y3IK22VXXXPXGZI7ABF}

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	2026-05-18T01:49:54.342234Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

28b0a4afd8da15ad56f7bbee6ca3e0095fdbce214e6fca406f1e60b71f32ce92

Aliases

arxiv: 1203.5782 · arxiv_version: 1203.5782v1 · doi: 10.48550/arxiv.1203.5782 · pith_short_12: FCYKJL6Y3IK2 · pith_short_16: FCYKJL6Y3IK22VXX · pith_short_8: FCYKJL6Y

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/FCYKJL6Y3IK22VXXXPXGZI7ABF \
  | 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: 28b0a4afd8da15ad56f7bbee6ca3e0095fdbce214e6fca406f1e60b71f32ce92

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c741e1424832ca03901a5bbd1de7ee5acfd55a15d097f66d30c2972271448226",
    "cross_cats_sorted": [
      "cs.CE",
      "math.AG",
      "q-bio.PE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2012-03-26T19:44:51Z",
    "title_canon_sha256": "5bc1fcde71ebdf44fb5f770384ad77dd56772759961cfe138904a111c395bdf7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1203.5782",
    "kind": "arxiv",
    "version": 1
  }
}