Pith Number

pith:CLJPJKRY

pith:1997:CLJPJKRYZJVEF2KUTZNNLH6IBS

not attested not anchored not stored refs pending

The Influence of the Photoionizing Radiation Spectrum on Metal-Line Ratios in Ly alpha Forest Clouds

J. Michael Shull (CASA, Mark L. Giroux (CASA, Univ. of Colo.), Univ. of Colo.; JILA, Univ. of Colo./NIST)

arxiv:astro-ph/9701160 v1 · 1997-01-21 · 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{CLJPJKRYZJVEF2KUTZNNLH6IBS}

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

Patchy Helium and Hydrogen Reionization from the Kinetic Sunyaev-Zel'dovich Effect and Galaxies

Receipt and verification

First computed	2026-07-04T16:02:50.582976Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

12d2f4aa38ca6a42e9549e5ad59fc80c806bb01e7cd6d534c309dd41aaab720b

Aliases

arxiv: astro-ph/9701160 · arxiv_version: astro-ph/9701160v1 · doi: 10.48550/arxiv.astro-ph/9701160 · pith_short_12: CLJPJKRYZJVE · pith_short_16: CLJPJKRYZJVEF2KU · pith_short_8: CLJPJKRY

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/CLJPJKRYZJVEF2KUTZNNLH6IBS \
  | 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: 12d2f4aa38ca6a42e9549e5ad59fc80c806bb01e7cd6d534c309dd41aaab720b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c7c35f180e3b9ec2f654d4816710a9bca23c0d9af6df56d0301e463d23c5c89f",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1997-01-21T21:48:42Z",
    "title_canon_sha256": "ed76f2c7f5fc9a71ff453e81047a672f2437ef13b749dd4c361abc5885d26350"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9701160",
    "kind": "arxiv",
    "version": 1
  }
}