Pith Number

pith:U4M5PAXV

pith:2025:U4M5PAXVNVSJPG4LVWOPATTCBJ

not attested not anchored not stored refs pending

Human vs. machine -- 1:3. Joint analysis of classical and ML-based summary statistics of the Lyman-$\alpha$ forest

D. Gruen, M. Walther, P. Nayak, S. Chang

arxiv:2508.03264 v1 · 2025-08-05 · astro-ph.CO · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{U4M5PAXVNVSJPG4LVWOPATTCBJ}

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	2026-07-05T11:48:52.855662Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a719d782f56d64979b8bad9cf04e620a4326b848ba7df57d746e50875ed8557d

Aliases

arxiv: 2508.03264 · arxiv_version: 2508.03264v1 · doi: 10.48550/arxiv.2508.03264 · pith_short_12: U4M5PAXVNVSJ · pith_short_16: U4M5PAXVNVSJPG4L · pith_short_8: U4M5PAXV

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/U4M5PAXVNVSJPG4LVWOPATTCBJ \
  | 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: a719d782f56d64979b8bad9cf04e620a4326b848ba7df57d746e50875ed8557d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0b0daf016bf2c8f38b86c43ba4a0220dc9af854e80bf8ed1e27243e60893d9db",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2025-08-05T09:45:29Z",
    "title_canon_sha256": "91e345c59706e0ee6b3ece8bf030d0222562c82f9283c0f8e929fdce94bff424"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2508.03264",
    "kind": "arxiv",
    "version": 1
  }
}