Pith Number

pith:6ZVFBNKK

pith:1997:6ZVFBNKKE7572LRMJSKUGW3RBV

not attested not anchored not stored refs pending

Spectropolarimetry of FIRST BAL QSOs

Arjun Dey, Hien D. Tran, M. S. Brotherton, Robert Antonucci, Wil van Breugel

arxiv:astro-ph/9707238 v1 · 1997-07-22 · 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{6ZVFBNKKE7572LRMJSKUGW3RBV}

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	2026-05-18T01:40:17.001426Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f66a50b54a27fbfd2e2c4c95435b710d512e59e040b92fd937266c8a41744676

Aliases

arxiv: astro-ph/9707238 · arxiv_version: astro-ph/9707238v1 · doi: 10.48550/arxiv.astro-ph/9707238 · pith_short_12: 6ZVFBNKKE757 · pith_short_16: 6ZVFBNKKE7572LRM · pith_short_8: 6ZVFBNKK

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/6ZVFBNKKE7572LRMJSKUGW3RBV \
  | 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: f66a50b54a27fbfd2e2c4c95435b710d512e59e040b92fd937266c8a41744676

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a5a9e3e739d2d7b7549b00565ecaf09e19fee3f5669969528279c159e420cae5",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1997-07-22T01:07:12Z",
    "title_canon_sha256": "78d56935ec23a97dfa4af8329f6ae05618eb0cef39a84979b546c41db4f2410d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9707238",
    "kind": "arxiv",
    "version": 1
  }
}