Pith Number

pith:QH4FTSTI

pith:2009:QH4FTSTICW52XSTDGGRYXPSYRS

not attested not anchored not stored refs pending

A Measurement of Small Scale Structure in the 2.2 < z < 4.2 Lyman-alpha Forest

2), (2) Harvard-CfA, (3) Astrophysikalisches Institut Potsdam, 4), (4) Berkeley, 5), (5) IAS), Adam Lidz (1, Aldo Dall'Aglio (3), C.-A. Faucher-Giguere (2), Cora Fechner (3), Lars Hernquist (2), Matias Zaldarriaga (2, Matthew McQuinn (2, Suvendra Dutta (2) ((1) U. Penn

arxiv:0909.5210 v1 · 2009-09-28 · astro-ph.CO

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Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QH4FTSTICW52XSTDGGRYXPSYRS}

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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

Machine Learning Techniques for Astrophysics and Cosmology: Lyman-$\alpha$ forest

Receipt and verification

First computed	2026-05-18T02:34:27.328169Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

81f859ca6815bbabca6331a38bbe588c81103a07e5485e2656252b1ed304101a

Aliases

arxiv: 0909.5210 · arxiv_version: 0909.5210v1 · doi: 10.48550/arxiv.0909.5210 · pith_short_12: QH4FTSTICW52 · pith_short_16: QH4FTSTICW52XSTD · pith_short_8: QH4FTSTI

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/QH4FTSTICW52XSTDGGRYXPSYRS \
  | 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: 81f859ca6815bbabca6331a38bbe588c81103a07e5485e2656252b1ed304101a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f089f064be3cf73f25dcbe33c4861333f3e981d6986102d8ee1a54ebea74e00b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-09-28T20:34:01Z",
    "title_canon_sha256": "baf839238548661cabb88683350250582ec0342e855858b4318e539201bdbf19"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.5210",
    "kind": "arxiv",
    "version": 1
  }
}