Pith Number

pith:ZFYYB5DM

pith:2026:ZFYYB5DMIG7WQBNVNDTP64ODTJ

not attested not anchored not stored refs pending

Hubble constant measurement with 13 bright standard sirens from binary black hole mergers inside active galactic nuclei

Alejandro Torres-Orjuela, Dhruv Kumar

arxiv:2607.03672 v1 · 2026-07-04 · astro-ph.CO · 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{ZFYYB5DMIG7WQBNVNDTP64ODTJ}

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	2026-07-07T02:18:00.928258Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c97180f46c41bf6805b568e6ff71c39a749bfb1ded04b2064952bd103aea3af8

Aliases

arxiv: 2607.03672 · arxiv_version: 2607.03672v1 · doi: 10.48550/arxiv.2607.03672 · pith_short_12: ZFYYB5DMIG7W · pith_short_16: ZFYYB5DMIG7WQBNV · pith_short_8: ZFYYB5DM

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/ZFYYB5DMIG7WQBNVNDTP64ODTJ \
  | 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: c97180f46c41bf6805b568e6ff71c39a749bfb1ded04b2064952bd103aea3af8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b97cb029e8782aed0e7f55c08982455aadbb94fc6fc5625eb80bd57bfb84ef96",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2026-07-04T02:58:17Z",
    "title_canon_sha256": "2610a87576b8b65acdc68ff9ef21e48b050d62ebbae1eaf8c3fc0a73574da019"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.03672",
    "kind": "arxiv",
    "version": 1
  }
}