Pith Number

pith:NVY3QYXP

pith:2001:NVY3QYXPTPNNZXV565AVWNFSYO

not attested not anchored not stored refs pending

Explaining the Lyman-alpha forest

Joop Schaye (IAS, Princeton)

arxiv:astro-ph/0112022 v1 · 2001-12-03 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NVY3QYXPTPNNZXV565AVWNFSYO}

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.

Cited by

1 paper in Pith

Playground of Lognormal Seminumerical Simulations of~the~Lyman~$\alpha$ Forest: Thermal History of the Intergalactic Medium

Receipt and verification

First computed	2026-07-04T14:11:40.920773Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6d71b862ef9bdadcdebdf7415b34b2c3adf27809e8353d7149fa595bdb2822c0

Aliases

arxiv: astro-ph/0112022 · arxiv_version: astro-ph/0112022v1 · doi: 10.48550/arxiv.astro-ph/0112022 · pith_short_12: NVY3QYXPTPNN · pith_short_16: NVY3QYXPTPNNZXV5 · pith_short_8: NVY3QYXP

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/NVY3QYXPTPNNZXV565AVWNFSYO \
  | 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: 6d71b862ef9bdadcdebdf7415b34b2c3adf27809e8353d7149fa595bdb2822c0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "52d8357c071e77823798e9ac1be096ed2e7ae76f4c4df289f40dd36aaee8c698",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2001-12-03T01:22:06Z",
    "title_canon_sha256": "7a53149aa4ed74c2c4f618e64646f7e9135bf8e1908ffd1a8abcd3a19aa44263"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0112022",
    "kind": "arxiv",
    "version": 1
  }
}