Pith Number

pith:FSANL6S3

pith:2017:FSANL6S3CT3F6SKG2WZQUUWYAW

not attested not anchored not stored refs pending

UPGMA and the normalized equidistant minimum evolution problem

Andreas Spillner, Taoyang Wu, Vincent Moulton

arxiv:1704.00497 v1 · 2017-04-03 · q-bio.PE · cs.CC · 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{FSANL6S3CT3F6SKG2WZQUUWYAW}

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	2026-05-18T00:47:22.191965Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2c80d5fa5b14f65f4946d5b30a52d80590838686288cca3d0e533376bb91e6f9

Aliases

arxiv: 1704.00497 · arxiv_version: 1704.00497v1 · doi: 10.48550/arxiv.1704.00497 · pith_short_12: FSANL6S3CT3F · pith_short_16: FSANL6S3CT3F6SKG · pith_short_8: FSANL6S3

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/FSANL6S3CT3F6SKG2WZQUUWYAW \
  | 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: 2c80d5fa5b14f65f4946d5b30a52d80590838686288cca3d0e533376bb91e6f9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "79027fac721d463a5651a5f73c8e422af14bb88b6929f6b2d9bd86c1955a8dfa",
    "cross_cats_sorted": [
      "cs.CC",
      "cs.DM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.PE",
    "submitted_at": "2017-04-03T09:38:33Z",
    "title_canon_sha256": "f6a9580467d1054b88162d0891aaef8e49b91b992eb0ccfc06e2f26ef307afa5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1704.00497",
    "kind": "arxiv",
    "version": 1
  }
}