Pith Number

pith:3XPVV6LY

pith:2016:3XPVV6LYJV6BZVOPBAMUDVRULQ

not attested not anchored not stored refs pending

A new VLA/e-MERLIN limit on central images in the gravitational lens system CLASS B1030+074

Amitpal Tagore, Andrew Biggs, Douglas Scott, Gianfranco De Zotti, Ismael Perez-Fournon, John McKean, Jonathan Quinn, Mark Birkinshaw, Neal Jackson, Scott Chapman, Stephen Serjeant

arxiv:1604.00173 v1 · 2016-04-01 · astro-ph.CO · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3XPVV6LYJV6BZVOPBAMUDVRULQ}

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	2026-05-18T01:16:39.167640Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dddf5af9784d7c1cd5cf081941d6345c33ea23875647f09298372a61440972d2

Aliases

arxiv: 1604.00173 · arxiv_version: 1604.00173v1 · doi: 10.48550/arxiv.1604.00173 · pith_short_12: 3XPVV6LYJV6B · pith_short_16: 3XPVV6LYJV6BZVOP · pith_short_8: 3XPVV6LY

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/3XPVV6LYJV6BZVOPBAMUDVRULQ \
  | 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: dddf5af9784d7c1cd5cf081941d6345c33ea23875647f09298372a61440972d2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e8f9b83932f39af0ef95d5ceb1e6156d4e7ba23fe62acc716815dda42f51f9a4",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2016-04-01T09:15:43Z",
    "title_canon_sha256": "c3be6311dd6d921120bf7196adc38da69c9c95c66cabcdd4e4f9c5de6c8b3a53"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1604.00173",
    "kind": "arxiv",
    "version": 1
  }
}