Pith Number

pith:CLD4UQ2B

pith:1998:CLD4UQ2B7ELVQC2ML7SH3WTCQ5

not attested not anchored not stored refs pending

The Radio-to-Submm Spectral Index as a Redshift Indicator

C.L. Carilli, Min Su Yun (NRAO)

arxiv:astro-ph/9812251 v4 · 1998-12-14 · 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{CLD4UQ2B7ELVQC2ML7SH3WTCQ5}

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

A dominant population of optically invisible massive galaxies in the early Universe

Receipt and verification

First computed	2026-07-04T16:07:22.055219Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

12c7ca4341f917580b4c5fe47dda62874c2e164f897bf2dd132dd92ec8d7a75a

Aliases

arxiv: astro-ph/9812251 · arxiv_version: astro-ph/9812251v4 · doi: 10.48550/arxiv.astro-ph/9812251 · pith_short_12: CLD4UQ2B7ELV · pith_short_16: CLD4UQ2B7ELVQC2M · pith_short_8: CLD4UQ2B

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/CLD4UQ2B7ELVQC2ML7SH3WTCQ5 \
  | 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: 12c7ca4341f917580b4c5fe47dda62874c2e164f897bf2dd132dd92ec8d7a75a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c907eba3ffa668c035ff559132e4b6d42cdeb3a4d9a4d700dd7d93d8eb2b4fbe",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1998-12-14T21:50:06Z",
    "title_canon_sha256": "ab3f38e022d21572450b51d129f42d41d9a91702c41c8affceea8904e53a8e31"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9812251",
    "kind": "arxiv",
    "version": 4
  }
}