Pith Number

pith:YFF7VWFQ

pith:2011:YFF7VWFQSKMO3J7KL3QFKWT7WA

not attested not anchored not stored refs pending

Mean-flux Regulated PCA Continuum Fitting of SDSS Lyman-alpha Forest Spectra

David N. Spergel, Khee-Gan Lee, Nao Suzuki

arxiv:1108.6080 v1 · 2011-08-30 · 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{YFF7VWFQSKMO3J7KL3QFKWT7WA}

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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	2026-05-18T03:40:03.360908Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c14bfad8b09298eda7ea5ee0555a7fb007071bcf19776e6fd6e77a2f8aed7a4a

Aliases

arxiv: 1108.6080 · arxiv_version: 1108.6080v1 · doi: 10.48550/arxiv.1108.6080 · pith_short_12: YFF7VWFQSKMO · pith_short_16: YFF7VWFQSKMO3J7K · pith_short_8: YFF7VWFQ

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/YFF7VWFQSKMO3J7KL3QFKWT7WA \
  | 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: c14bfad8b09298eda7ea5ee0555a7fb007071bcf19776e6fd6e77a2f8aed7a4a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "65bf90bc354fe599c90419c8adc378c5cbd41fa61122f0493d4c55b1758f71b9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-08-30T20:52:06Z",
    "title_canon_sha256": "b8b93afc64c0e6070677257219803bbca97ca989feb17eb80b044b9077bdc7ea"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1108.6080",
    "kind": "arxiv",
    "version": 1
  }
}