Pith Number

pith:F3QTMHE2

pith:2021:F3QTMHE2ESOAU3P226POTRKKOB

not attested not anchored not stored refs pending

Bounding dark charges on binary black holes using gravitational waves

Chris Van Den Broeck, Gideon Koekoek, Pawan Kumar Gupta, Peter T.H. Pang, Thomas F.M. Spieksma

arxiv:2107.12111 v1 · 2021-07-26 · gr-qc · 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{F3QTMHE2ESOAU3P226POTRKKOB}

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	2026-07-05T03:18:21.102939Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2ee1361c9a249c0a6dfad79ee9c54a707030ad957d7aa3c982a49bb1e02dba1f

Aliases

arxiv: 2107.12111 · arxiv_version: 2107.12111v1 · doi: 10.48550/arxiv.2107.12111 · pith_short_12: F3QTMHE2ESOA · pith_short_16: F3QTMHE2ESOAU3P2 · pith_short_8: F3QTMHE2

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/F3QTMHE2ESOAU3P226POTRKKOB \
  | 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: 2ee1361c9a249c0a6dfad79ee9c54a707030ad957d7aa3c982a49bb1e02dba1f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c9cf92f759b833ed14fa7a7a77eea956bf6c1686be3ec3b7da871e668bd76c56",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2021-07-26T11:08:45Z",
    "title_canon_sha256": "92fe5a4156fbb220f2c942ea12afc43e3246400f38e8b86ac486f19f94be8be5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2107.12111",
    "kind": "arxiv",
    "version": 1
  }
}