Pith Number

pith:HZFACBOP

pith:2022:HZFACBOP5DA5ITF7QCFVMPNMEY

not attested not anchored not stored refs pending

Nomen non est omen: Why it is too soon to identify ultra-compact objects as black holes

Sebastian Murk

arxiv:2210.03750 v4 · 2022-10-07 · 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{HZFACBOP5DA5ITF7QCFVMPNMEY}

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	2026-07-05T07:23:54.561800Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3e4a0105cfe8c1d44cbf808b563dac26217d6a7ee3f610829365ae386376f82a

Aliases

arxiv: 2210.03750 · arxiv_version: 2210.03750v4 · doi: 10.48550/arxiv.2210.03750 · pith_short_12: HZFACBOP5DA5 · pith_short_16: HZFACBOP5DA5ITF7 · pith_short_8: HZFACBOP

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/HZFACBOP5DA5ITF7QCFVMPNMEY \
  | 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: 3e4a0105cfe8c1d44cbf808b563dac26217d6a7ee3f610829365ae386376f82a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "632d38b6108d5dfc504ea427ea13ed5de65c8d2527b9594b269c693db8a7b61a",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2022-10-07T18:00:00Z",
    "title_canon_sha256": "f2b4ed55cef2e7a98f77de292bdd94cb26cae192d585f7c6a71fdac9ad3e41ad"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2210.03750",
    "kind": "arxiv",
    "version": 4
  }
}