Pith Number

pith:DYRUHIIQ

pith:2011:DYRUHIIQ5F4IWBOCLOWMVYSOMW

not attested not anchored not stored refs pending

A Simple Characterization of the Minimal Obstruction Sets for Three-State Perfect Phylogenies

Brad Shutters, David Fern\'andez-Baca

arxiv:1106.0874 v1 · 2011-06-05 · cs.DS · cs.DM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DYRUHIIQ5F4IWBOCLOWMVYSOMW}

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	2026-05-18T04:20:37.202127Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1e2343a110e9788b05c25baccae24e65997335a6041bdc73f6c993689348376f

Aliases

arxiv: 1106.0874 · arxiv_version: 1106.0874v1 · doi: 10.48550/arxiv.1106.0874 · pith_short_12: DYRUHIIQ5F4I · pith_short_16: DYRUHIIQ5F4IWBOC · pith_short_8: DYRUHIIQ

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/DYRUHIIQ5F4IWBOCLOWMVYSOMW \
  | 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: 1e2343a110e9788b05c25baccae24e65997335a6041bdc73f6c993689348376f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dc9acb31adac1d322444409e5d2faf7dedfa35f1d08b6bc79a992a5069f4bc33",
    "cross_cats_sorted": [
      "cs.DM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2011-06-05T05:10:38Z",
    "title_canon_sha256": "f8ed06c03ad2935af0416526de5c9340cf57376ae830d3f9f7f17764bbb5c6a6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1106.0874",
    "kind": "arxiv",
    "version": 1
  }
}