Pith Number

pith:IA2NYU6U

pith:2026:IA2NYU6UTWBKC5IBMWGYFZTCPX

not attested not anchored not stored refs pending

Regularizing and Normalizing DAGs and Phylogenetic Networks

Anna Lindeberg, Marc Hellmuth, Vincent Moulton

arxiv:2605.21725 v1 · 2026-05-20 · q-bio.PE · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IA2NYU6UTWBKC5IBMWGYFZTCPX}

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	2026-05-22T01:03:29.484055Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4034dc53d49d82a17501658d82e6627decca911cca80d4eb055f97f3e8d6bea2

Aliases

arxiv: 2605.21725 · arxiv_version: 2605.21725v1 · doi: 10.48550/arxiv.2605.21725 · pith_short_12: IA2NYU6UTWBK · pith_short_16: IA2NYU6UTWBKC5IB · pith_short_8: IA2NYU6U

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/IA2NYU6UTWBKC5IBMWGYFZTCPX \
  | 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: 4034dc53d49d82a17501658d82e6627decca911cca80d4eb055f97f3e8d6bea2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d0d61c0cd4f58687c5c0d23abb30b06503ae9b03a2318a3755b16f7b4bf4ccaf",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "q-bio.PE",
    "submitted_at": "2026-05-20T20:33:54Z",
    "title_canon_sha256": "2ed338e0ce7a1859b722dc234e9ad27d07edfdd76a9c4a7c04783443e370b79b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.21725",
    "kind": "arxiv",
    "version": 1
  }
}