Pith Number

pith:ZRJDPQSJ

pith:2007:ZRJDPQSJ7OLKHCI6QHHUDOAGIW

not attested not anchored not stored refs pending

Highly Polarized Optically-Selected BL Lacertae Objects

(2) MMTO, Aleksandar M. Diamond-Stanic (1), Dennis L. Means (1) ((1) Steward Observatory, Gary D. Schmidt (1), G. Grant Williams (2), Paul S. Smith (1), The University of Arizona, The University of Arizona)

arxiv:astro-ph/0703289 v1 · 2007-03-12 · 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{ZRJDPQSJ7OLKHCI6QHHUDOAGIW}

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	2026-05-18T04:29:05.727352Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cc5237c249fb96a3891e81cf41b80645917b9a8009640b1e6f7f5218117b597b

Aliases

arxiv: astro-ph/0703289 · arxiv_version: astro-ph/0703289v1 · doi: 10.48550/arxiv.astro-ph/0703289 · pith_short_12: ZRJDPQSJ7OLK · pith_short_16: ZRJDPQSJ7OLKHCI6 · pith_short_8: ZRJDPQSJ

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/ZRJDPQSJ7OLKHCI6QHHUDOAGIW \
  | 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: cc5237c249fb96a3891e81cf41b80645917b9a8009640b1e6f7f5218117b597b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2f814efcbf0b2f95c2140e4ba21c55620c46749e4d3fc7fd94f0161b6bc13aff",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-03-12T23:04:36Z",
    "title_canon_sha256": "899f2ad16c752d09e2aee30ff256547f4ad1fc24f0ee3cfb2194adffd8bc99ca"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0703289",
    "kind": "arxiv",
    "version": 1
  }
}