Pith Number

pith:NIOZY5VL

pith:2016:NIOZY5VL2FX4DP4T53CC23CYOC

not attested not anchored not stored refs pending

Efficient FPT algorithms for (strict) compatibility of unrooted phylogenetic trees

Celine Scornavacca, Christophe Paul, Ignasi Sau, Julien Baste

arxiv:1604.03008 v1 · 2016-04-11 · cs.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NIOZY5VL2FX4DP4T53CC23CYOC}

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	2026-05-18T01:17:21.658338Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6a1d9c76abd16fc1bf93eec42d6c5870bd2c3ca0a9522f619978b4f2950e46d3

Aliases

arxiv: 1604.03008 · arxiv_version: 1604.03008v1 · doi: 10.48550/arxiv.1604.03008 · pith_short_12: NIOZY5VL2FX4 · pith_short_16: NIOZY5VL2FX4DP4T · pith_short_8: NIOZY5VL

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/NIOZY5VL2FX4DP4T53CC23CYOC \
  | 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: 6a1d9c76abd16fc1bf93eec42d6c5870bd2c3ca0a9522f619978b4f2950e46d3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "55e1998e5515af571ec124c79bb0d0f47cb454f87dd8cb8007ad76ab29938352",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2016-04-11T15:49:14Z",
    "title_canon_sha256": "8d26ae9f22c5577a5baeccd07cb6ddd13b464ede58d3cbad137378588be27525"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1604.03008",
    "kind": "arxiv",
    "version": 1
  }
}