Pith Number

pith:WVFXJRCB

pith:2023:WVFXJRCBTANUH4CVLVAL3Z2ECO

not attested not anchored not stored refs pending

Testing the $\delta$-Kerr metric with black hole X-ray data

Askar B. Abdikamalov, Biao Zhou, Cosimo Bambi, Daniele Malafarina, Jiahao Tao, Shafqat Riaz

arxiv:2301.12164 v2 · 2023-01-28 · 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{WVFXJRCBTANUH4CVLVAL3Z2ECO}

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	2026-07-05T07:04:45.015432Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b54b74c441981b43f0555d40bde744138045fcb39035cbdecaaeb0b061e91c1c

Aliases

arxiv: 2301.12164 · arxiv_version: 2301.12164v2 · doi: 10.48550/arxiv.2301.12164 · pith_short_12: WVFXJRCBTANU · pith_short_16: WVFXJRCBTANUH4CV · pith_short_8: WVFXJRCB

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/WVFXJRCBTANUH4CVLVAL3Z2ECO \
  | 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: b54b74c441981b43f0555d40bde744138045fcb39035cbdecaaeb0b061e91c1c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3c44cde30bf430e86711f361f6654bb8e87de5867519fdb98b94207e30001fd8",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2023-01-28T11:31:47Z",
    "title_canon_sha256": "66663b79c56da46854facd4ce89d1e05499c8e3489f64a6ef013936240540aca"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2301.12164",
    "kind": "arxiv",
    "version": 2
  }
}