Pith Number

pith:RGQCHIBJ

pith:2014:RGQCHIBJVGWSJQP7OVWSPYTYL6

not attested not anchored not stored refs pending

Measuring gravitational lens time delays using low-resolution radio monitoring observations

A. Berciano Alba, C.D. Fassnacht, G. Gurkan, L.V.E. Koopmans, N. Jackson

arxiv:1403.4986 v1 · 2014-03-19 · astro-ph.CO

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RGQCHIBJVGWSJQP7OVWSPYTYL6}

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	2026-05-18T02:55:58.381933Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

89a023a029a9ad24c1ff756d27e2785fb1b38f501a3124bf721f6662f9813192

Aliases

arxiv: 1403.4986 · arxiv_version: 1403.4986v1 · doi: 10.48550/arxiv.1403.4986 · pith_short_12: RGQCHIBJVGWS · pith_short_16: RGQCHIBJVGWSJQP7 · pith_short_8: RGQCHIBJ

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/RGQCHIBJVGWSJQP7OVWSPYTYL6 \
  | 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: 89a023a029a9ad24c1ff756d27e2785fb1b38f501a3124bf721f6662f9813192

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1f4d23eff691e3a788616bb80adb95a98ae9ca6c70c7bc0587f7ae968f6ab56b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2014-03-19T21:36:56Z",
    "title_canon_sha256": "c02d89f693d70bc68ef654794ef5933392991bfebccd1ed27d9b35590d5fb662"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1403.4986",
    "kind": "arxiv",
    "version": 1
  }
}