Pith Number

pith:4F6DYLX2

pith:2004:4F6DYLX2XAEYPZOVPUQP3ADAHE

not attested not anchored not stored refs pending

Conjugate 18cm OH Satellite Lines at a Cosmological Distance

(2) National Centre for Radio Astrophysics, (3) Arecibo Observatory), Jayaram N. Chengalur (2), Nissim Kanekar (1), Tapasi Ghosh (3) ((1) Kapteyn Institute

arxiv:astro-ph/0406121 v2 · 2004-06-04 · 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{4F6DYLX2XAEYPZOVPUQP3ADAHE}

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	2026-07-04T15:20:14.070960Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e17c3c2efab80987e5d57d20fd8060390aa25c2b95d42dad576fc7b61c347764

Aliases

arxiv: astro-ph/0406121 · arxiv_version: astro-ph/0406121v2 · doi: 10.48550/arxiv.astro-ph/0406121 · pith_short_12: 4F6DYLX2XAEY · pith_short_16: 4F6DYLX2XAEYPZOV · pith_short_8: 4F6DYLX2

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/4F6DYLX2XAEYPZOVPUQP3ADAHE \
  | 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: e17c3c2efab80987e5d57d20fd8060390aa25c2b95d42dad576fc7b61c347764

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "afd01a5ebe08afa0dd21732bb63a785b15d35537c2da8e064525d76886d5d539",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-06-04T16:51:25Z",
    "title_canon_sha256": "cbb175019a4246363788c0287f6a756c3ec12dafa7d89b31edef8301c55ad7f4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0406121",
    "kind": "arxiv",
    "version": 2
  }
}