Pith Number

pith:ZRYU3I25

pith:2023:ZRYU3I25LQGIJUZN56MDZ3PNQK

not attested not anchored not stored refs pending

Signatures of a spinning supermassive black hole binary on the mas-scale jet of the quasar S5 1928+738 based on 25 years of VLBI data

E. Kun, K. \'E. Gab\'anyi, L. \'A. Gergely, S. Britzen, S. Frey

arxiv:2308.00153 v2 · 2023-07-31 · astro-ph.HE · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZRYU3I25LQGIJUZN56MDZ3PNQK}

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	2026-07-05T07:08:42.773960Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cc714da35d5c0c84d32def983ceded8281cc602d31a6f1a172bcf30acd55da6b

Aliases

arxiv: 2308.00153 · arxiv_version: 2308.00153v2 · doi: 10.48550/arxiv.2308.00153 · pith_short_12: ZRYU3I25LQGI · pith_short_16: ZRYU3I25LQGIJUZN · pith_short_8: ZRYU3I25

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/ZRYU3I25LQGIJUZN56MDZ3PNQK \
  | 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: cc714da35d5c0c84d32def983ceded8281cc602d31a6f1a172bcf30acd55da6b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "57a8607ce6a56dbd986058c7241ae86d3637ab814e2dfb1fc101f147bf3f4d0f",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2023-07-31T21:07:54Z",
    "title_canon_sha256": "3313c2a936c8007b38abf86d98d11747497403fc6d7a459c9987a5a7cad8141e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2308.00153",
    "kind": "arxiv",
    "version": 2
  }
}