Pith Number

pith:J4AADN7H

pith:2017:J4AADN7HVP7NJLJ5C4A5FU25UH

not attested not anchored not stored refs pending

Cygnus A super-resolved via convex optimisation from VLA data

Abdullah Abdulaziz, Alexandru Onose, Arwa Dabbech, Oleg M. Smirnov, Richard A. Perley, Yves Wiaux

arxiv:1710.08810 v2 · 2017-10-24 · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{J4AADN7HVP7NJLJ5C4A5FU25UH}

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	2026-05-18T00:16:08.482557Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4f0001b7e7abfed4ad3d1701d2d35da1f0a7b37cedd6003b3831cd00526f3ade

Aliases

arxiv: 1710.08810 · arxiv_version: 1710.08810v2 · doi: 10.48550/arxiv.1710.08810 · pith_short_12: J4AADN7HVP7N · pith_short_16: J4AADN7HVP7NJLJ5 · pith_short_8: J4AADN7H

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/J4AADN7HVP7NJLJ5C4A5FU25UH \
  | 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: 4f0001b7e7abfed4ad3d1701d2d35da1f0a7b37cedd6003b3831cd00526f3ade

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ea745bfc23637ea88e6e21f5b5abd19129d29248c7c45cb7ed54b92ed9b4c728",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2017-10-24T14:44:13Z",
    "title_canon_sha256": "e997917a5211dc23989a5dc952fa81732bdc7a33311b40bc8fc55653194a9047"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1710.08810",
    "kind": "arxiv",
    "version": 2
  }
}