Pith Number

pith:PYY2JVWI

pith:2018:PYY2JVWIKYI2QT66Z2H7Q45NGZ

not attested not anchored not stored refs pending

Astrophysical black holes

Pedro R. Capelo

arxiv:1807.06014 v2 · 2018-07-16 · astro-ph.HE · astro-ph.CO · astro-ph.GA · 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{PYY2JVWIKYI2QT66Z2H7Q45NGZ}

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	2026-07-04T23:52:02.441530Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7e31a4d6c85611a84fdece8ff873ad367eeb345da206db0d513613cf8b97c26a

Aliases

arxiv: 1807.06014 · arxiv_version: 1807.06014v2 · doi: 10.48550/arxiv.1807.06014 · pith_short_12: PYY2JVWIKYI2 · pith_short_16: PYY2JVWIKYI2QT66 · pith_short_8: PYY2JVWI

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/PYY2JVWIKYI2QT66Z2H7Q45NGZ \
  | 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: 7e31a4d6c85611a84fdece8ff873ad367eeb345da206db0d513613cf8b97c26a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "abb36e2e56b9e75e5f3f2f85700468298c85e70532f985750100bf4600f1fc65",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "astro-ph.GA",
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2018-07-16T18:00:00Z",
    "title_canon_sha256": "5aad9074dad97a3d0de270fb36d89fa4fcf57e850eb6021c777c0eaba612ffd0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.06014",
    "kind": "arxiv",
    "version": 2
  }
}