Pith Number

pith:PDABBTRB

pith:2005:PDABBTRB6J5VJ5SGQJFGAYH6OY

not attested not anchored not stored refs pending

HE 0141-3932: a bright QSO with an unusual emission line spectrum and associated absorption

C. Fechner, D. Reimers, E. Janknecht, I. I. Agafonova, S. A. Levshakov, S. Lopez

arxiv:astro-ph/0501629 v1 · 2005-01-28 · 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{PDABBTRB6J5VJ5SGQJFGAYH6OY}

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	2026-07-04T16:50:43.239169Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

78c010ce21f27b54f646824a6060fe763ba342f2e3c882e73e3337aa4d20b5df

Aliases

arxiv: astro-ph/0501629 · arxiv_version: astro-ph/0501629v1 · doi: 10.48550/arxiv.astro-ph/0501629 · pith_short_12: PDABBTRB6J5V · pith_short_16: PDABBTRB6J5VJ5SG · pith_short_8: PDABBTRB

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/PDABBTRB6J5VJ5SGQJFGAYH6OY \
  | 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: 78c010ce21f27b54f646824a6060fe763ba342f2e3c882e73e3337aa4d20b5df

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "db6d16e299b6d62a3ba50b559aa7f0104e3923c076f581bf375593c4858b71e3",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2005-01-28T10:19:56Z",
    "title_canon_sha256": "9c03cf7a63ec1dd49a2aade0e750ddb7bdbe3e5d313562ccc2c76157931ba28b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0501629",
    "kind": "arxiv",
    "version": 1
  }
}