Pith Number

pith:4RUGFMRT

pith:2018:4RUGFMRT57M6QKOY27LQNDJHOK

not attested not anchored not stored refs pending

Absorber Model: the Halo-like model for the Lyman-alpha forest

Matthew McQuinn, Vid Ir\v{s}i\v{c}

arxiv:1801.02671 v2 · 2018-01-08 · astro-ph.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{4RUGFMRT57M6QKOY27LQNDJHOK}

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	2026-05-18T00:19:02.688901Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e46862b233efd9e829d8d7d7068d277298657570d5f06f010e684e0df8e71de6

Aliases

arxiv: 1801.02671 · arxiv_version: 1801.02671v2 · doi: 10.48550/arxiv.1801.02671 · pith_short_12: 4RUGFMRT57M6 · pith_short_16: 4RUGFMRT57M6QKOY · pith_short_8: 4RUGFMRT

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/4RUGFMRT57M6QKOY27LQNDJHOK \
  | 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: e46862b233efd9e829d8d7d7068d277298657570d5f06f010e684e0df8e71de6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "79051a4ac3907a86ac33545e4c07764d71effa061040c42bce425d9d881cc9ff",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2018-01-08T20:11:45Z",
    "title_canon_sha256": "35ead7e1e088214ba65950fc777b06f8eb7414c6d2bc85f9a4399e51e30d8975"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.02671",
    "kind": "arxiv",
    "version": 2
  }
}