Pith Number

pith:OQQX65A6

pith:2019:OQQX65A6L4WRZBXYDMLE4DYPOW

not attested not anchored not stored refs pending

Supermassive Black Hole Spin and Reverberation

A. Zoghbi, B. De Marco, D. R. Wilkins, E. Cackett, E. Kara, G. Matt, G. Miniutti, J. Garcia, L. Brenneman, M. Dovciak

arxiv:1903.05469 v1 · 2019-03-13 · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OQQX65A6L4WRZBXYDMLE4DYPOW}

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	2026-05-17T23:51:20.844369Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

74217f741e5f2d1c86f81b164e0f0f75aa1f3f5d07a68ee1d21f66004b0e90bd

Aliases

arxiv: 1903.05469 · arxiv_version: 1903.05469v1 · doi: 10.48550/arxiv.1903.05469 · pith_short_12: OQQX65A6L4WR · pith_short_16: OQQX65A6L4WRZBXY · pith_short_8: OQQX65A6

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/OQQX65A6L4WRZBXYDMLE4DYPOW \
  | 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: 74217f741e5f2d1c86f81b164e0f0f75aa1f3f5d07a68ee1d21f66004b0e90bd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c5120d5f8780a28961b3b91143008afe4b02ba7d2ac5781bcc825f06561c49b9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2019-03-13T13:02:22Z",
    "title_canon_sha256": "01e4a37ad5c29e134e5edb7246058920b42d94294fa3f1dfc6649b8c769dd021"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.05469",
    "kind": "arxiv",
    "version": 1
  }
}