Pith Number

pith:VRHCY3HI

pith:2019:VRHCY3HIDQNKIKRLJ5DF3TRSCJ

not attested not anchored not stored refs pending

A Novel Statistical Method for Measuring the Temperature-Density Relation in the IGM Using the $b$-$N_{\text{HI}}$ Distribution of Absorbers in the Ly$\alpha$ Forest

Hector Hiss, Jos\'e O\~norbe, Joseph F. Hennawi, Michael Walther

arxiv:1903.11940 v1 · 2019-03-28 · 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{VRHCY3HIDQNKIKRLJ5DF3TRSCJ}

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

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

Receipt and verification

First computed	2026-05-17T23:46:18.044155Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ac4e2c6ce81c1aa42a2b4f465dce3212634ed633fa3bd2447a43b51783e2882b

Aliases

arxiv: 1903.11940 · arxiv_version: 1903.11940v1 · doi: 10.48550/arxiv.1903.11940 · pith_short_12: VRHCY3HIDQNK · pith_short_16: VRHCY3HIDQNKIKRL · pith_short_8: VRHCY3HI

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/VRHCY3HIDQNKIKRLJ5DF3TRSCJ \
  | 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: ac4e2c6ce81c1aa42a2b4f465dce3212634ed633fa3bd2447a43b51783e2882b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8467ef025b9fb3d3cb6a532ae423989fb14dabb69260caa399d27ec53f915306",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2019-03-28T13:14:30Z",
    "title_canon_sha256": "7f6bac73a35ad74832c360bf64a0c19d6b938db2383c523ff4360aed6d2e3adc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.11940",
    "kind": "arxiv",
    "version": 1
  }
}