Pith Number

pith:EPO3D7I5

pith:2017:EPO3D7I5A5X4QZW5F4U6OQUE24

not attested not anchored not stored refs pending

The Twisted Radio Structure of PSO J334.2028+01.4075, Still a Supermassive Binary Black Hole Candidate

G. Hallinan (Caltech), J. M. Wrobel (NRAO, K. P. Mooley (Oxford), M. M. Anderson, NSF)

arxiv:1703.10227 v1 · 2017-03-29 · astro-ph.HE · 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{EPO3D7I5A5X4QZW5F4U6OQUE24}

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	2026-05-18T00:31:13.166422Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

23ddb1fd1d076fc866dd2f29e74284d727bf6792d377074d78a1d8a7762ee9b4

Aliases

arxiv: 1703.10227 · arxiv_version: 1703.10227v1 · doi: 10.48550/arxiv.1703.10227 · pith_short_12: EPO3D7I5A5X4 · pith_short_16: EPO3D7I5A5X4QZW5 · pith_short_8: EPO3D7I5

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/EPO3D7I5A5X4QZW5F4U6OQUE24 \
  | 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: 23ddb1fd1d076fc866dd2f29e74284d727bf6792d377074d78a1d8a7762ee9b4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "31e4d99a16074c0340b68511e1b3fe11ede3404f8e4d68c74133c455c566b5f2",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2017-03-29T20:08:50Z",
    "title_canon_sha256": "97c9e48122cfcf030ff0eb4fff51250e5b82be70431812c5596386861e0e75c8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1703.10227",
    "kind": "arxiv",
    "version": 1
  }
}