Pith Number

pith:BXCL3GG7

pith:2000:BXCL3GG72XXZD264HNS7WFUOAY

not attested not anchored not stored refs pending

VLA and MERLIN monitoring observations of the gravitational lens system B1030+074

A. R. Patnaik (MPIfR), E. Xanthopoulos (JBO), I. W. A. Browne (JBO), P. N. Wilkinson (JBO)

arxiv:astro-ph/0012373 v1 · 2000-12-17 · 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{BXCL3GG72XXZD264HNS7WFUOAY}

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	2026-07-04T14:10:57.750073Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0dc4bd98dfd5ef91ebdc3b65fb168e0600f330f46d09336f38f1382667b87ff8

Aliases

arxiv: astro-ph/0012373 · arxiv_version: astro-ph/0012373v1 · doi: 10.48550/arxiv.astro-ph/0012373 · pith_short_12: BXCL3GG72XXZ · pith_short_16: BXCL3GG72XXZD264 · pith_short_8: BXCL3GG7

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/BXCL3GG72XXZD264HNS7WFUOAY \
  | 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: 0dc4bd98dfd5ef91ebdc3b65fb168e0600f330f46d09336f38f1382667b87ff8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dc0fd11b427bada353813db32d7ac00d13ff2954fb4bb556f9fb488a2cb2165a",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2000-12-17T18:59:30Z",
    "title_canon_sha256": "b4c0952eb9f99d23699566293d6c41c8e168162ac2a4bac665327ae9dc5ecf44"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0012373",
    "kind": "arxiv",
    "version": 1
  }
}