Pith Number

pith:4YNC5BDX

pith:2017:4YNC5BDXETSHKLRAUAHBZXG72T

not attested not anchored not stored refs pending

Black Hole Continuum Spectra as a Test of General Relativity: Quadratic Gravity

Dimitry Ayzenberg, Nicolas Yunes

arxiv:1701.07003 v2 · 2017-01-24 · 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{4YNC5BDXETSHKLRAUAHBZXG72T}

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	2026-05-18T00:44:13.440704Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e61a2e847724e4752e20a00e1cdcdfd4d1881442732972ea91591b16c9e7154c

Aliases

arxiv: 1701.07003 · arxiv_version: 1701.07003v2 · doi: 10.48550/arxiv.1701.07003 · pith_short_12: 4YNC5BDXETSH · pith_short_16: 4YNC5BDXETSHKLRA · pith_short_8: 4YNC5BDX

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/4YNC5BDXETSHKLRAUAHBZXG72T \
  | 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: e61a2e847724e4752e20a00e1cdcdfd4d1881442732972ea91591b16c9e7154c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "402065f2b1325165ca683c936da66c16fab59721800ef5db3c12b838331ad458",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2017-01-24T18:24:09Z",
    "title_canon_sha256": "449a5ab844b54c9df2f1508ea52e95f1eefee906f6fa8f596231f9ec049db12b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1701.07003",
    "kind": "arxiv",
    "version": 2
  }
}