Pith Number

pith:FH72QZTF

pith:1996:FH72QZTFAVPA2AZY4HJG75NOGX

not attested not anchored not stored refs pending

A survey for high-redshift radio-loud quasars: optical spectroscopy of S > 0.2 Jy, flat-spectrum radio sources

C. Hazard, I. M. Hook, M. J. Irwin, R. G. McMahon

arxiv:astro-ph/9608129 v1 · 1996-08-20 · 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{FH72QZTFAVPA2AZY4HJG75NOGX}

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	2026-05-18T01:40:19.547397Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

29ffa86665055e0d0338e1d26ff5ae35cfd1080f7a4056dc4a0e38675dba1e08

Aliases

arxiv: astro-ph/9608129 · arxiv_version: astro-ph/9608129v1 · doi: 10.48550/arxiv.astro-ph/9608129 · pith_short_12: FH72QZTFAVPA · pith_short_16: FH72QZTFAVPA2AZY · pith_short_8: FH72QZTF

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/FH72QZTFAVPA2AZY4HJG75NOGX \
  | 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: 29ffa86665055e0d0338e1d26ff5ae35cfd1080f7a4056dc4a0e38675dba1e08

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "384a5bcfdc4f135f87f71c2c49c765c7313ea8630cabcdb0aef4dda373308a1d",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1996-08-20T19:23:10Z",
    "title_canon_sha256": "0db9cff4a38dadd97ac45c763124d8f33a4d215fdd4228a6e143a9bdd30bcac9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9608129",
    "kind": "arxiv",
    "version": 1
  }
}