Pith Number

pith:6CRCOUYD

pith:2005:6CRCOUYDUFHPVBESJYFLXHA4OH

not attested not anchored not stored refs pending

VSOP monitoring of the compact BL Lac object AO 0235+164

C.J. Salter, D.C. Gabuzda (U. College Cork), D.R. Altschuler, H.D. Aller (U. Michigan), H. Hirabayashi (ISAS/JAXA), L.I. Gurvits (JIVE), M.F. Aller, M.M. Davis (SETI Inst.), P. Perillat (NAIC Arecibo Obs.), S. Frey (FOMI SGO)

arxiv:astro-ph/0509528 v1 · 2005-09-19 · 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{6CRCOUYDUFHPVBESJYFLXHA4OH}

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	2026-05-18T01:40:33.452114Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f0a2275303a14efa84924e0abb9c1c71e7c6a8d83afd004492b61607d7ae3776

Aliases

arxiv: astro-ph/0509528 · arxiv_version: astro-ph/0509528v1 · doi: 10.48550/arxiv.astro-ph/0509528 · pith_short_12: 6CRCOUYDUFHP · pith_short_16: 6CRCOUYDUFHPVBES · pith_short_8: 6CRCOUYD

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/6CRCOUYDUFHPVBESJYFLXHA4OH \
  | 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: f0a2275303a14efa84924e0abb9c1c71e7c6a8d83afd004492b61607d7ae3776

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "24c287ad7be9ed064af6398c83ff666ae3c6e06a0cecaf234db049aa1153fc49",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2005-09-19T07:13:40Z",
    "title_canon_sha256": "baaff76d9f241dacf7892fa4ca0aa111c4d5ba8bf5e25675406c8ed5458764d0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0509528",
    "kind": "arxiv",
    "version": 1
  }
}