Pith Number

pith:B2UDY5KB

pith:2022:B2UDY5KBD5XAFVAPTNHVJVOIYP

not attested not anchored not stored refs pending

Dark Matter Constraints from the Eccentric Supermassive Black Hole Binary OJ 287

Ahmad Alachkar, John Ellis, Malcolm Fairbairn

arxiv:2207.10021 v2 · 2022-07-12 · hep-ph · 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{B2UDY5KBD5XAFVAPTNHVJVOIYP}

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.

Cited by

1 paper in Pith

Formation and Redshift Evolution of Dark Matter Spikes

Receipt and verification

First computed	2026-07-05T06:15:14.456945Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0ea83c75411f6e02d40f9b4f54d5c8c3ff88764ead631fe75e74353ca31c1dc1

Aliases

arxiv: 2207.10021 · arxiv_version: 2207.10021v2 · doi: 10.48550/arxiv.2207.10021 · pith_short_12: B2UDY5KBD5XA · pith_short_16: B2UDY5KBD5XAFVAP · pith_short_8: B2UDY5KB

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/B2UDY5KBD5XAFVAPTNHVJVOIYP \
  | 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: 0ea83c75411f6e02d40f9b4f54d5c8c3ff88764ead631fe75e74353ca31c1dc1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5f75bc2271bd0ba38b33277fc69c78b90da752d99a83db7abfa9b9cf0152d725",
    "cross_cats_sorted": [
      "astro-ph.HE",
      "gr-qc"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "hep-ph",
    "submitted_at": "2022-07-12T16:44:56Z",
    "title_canon_sha256": "2d5e3fee5e6ac1e68546d8d222e603564bf840d8ee4b8719738cd79c27b0e1b0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2207.10021",
    "kind": "arxiv",
    "version": 2
  }
}