Pith Number

pith:355OS2VL

pith:2002:355OS2VLV2FBFUTP4ZZMWZZQD6

not attested not anchored not stored refs pending

A search for molecules in damped Lyman-alpha absorbers occulting millimetre-loud quasars

F. Rantakyro (ESO & U. Chile), J. K. Webb (UNSW), L. E. B. Johansson (OSO), M. T. Murphy (UNSW), Serbia), S. J. Curran (UNSW), S. Nikolic (OSO & AO

arxiv:astro-ph/0209175 v1 · 2002-09-10 · 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{355OS2VLV2FBFUTP4ZZMWZZQD6}

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.

Receipt and verification

First computed	2026-07-04T16:30:45.645520Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

df7ae96aabae8a12d26fe672cb67301faf50d6b9cc1d7180aee8ff602a2a17dc

Aliases

arxiv: astro-ph/0209175 · arxiv_version: astro-ph/0209175v1 · doi: 10.48550/arxiv.astro-ph/0209175 · pith_short_12: 355OS2VLV2FB · pith_short_16: 355OS2VLV2FBFUTP · pith_short_8: 355OS2VL

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/355OS2VLV2FBFUTP4ZZMWZZQD6 \
  | 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: df7ae96aabae8a12d26fe672cb67301faf50d6b9cc1d7180aee8ff602a2a17dc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "375435378da55bd527e75627613dde3c01518df6568115154dc80a87eb0794d8",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2002-09-10T03:30:44Z",
    "title_canon_sha256": "8ae06431c3928ae98dc18cb3b9e9054ef78ab7c51c8581b747859471d497657b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0209175",
    "kind": "arxiv",
    "version": 1
  }
}