Pith Number

pith:JD5AG4P3

pith:2010:JD5AG4P3IJURMOAZCT3BOCQEYM

not attested not anchored not stored refs pending

Do we know the mass of a black hole? Mass of some cosmological black hole models

J. T. Firouzjaee, M. Parsi Mood, Reza Mansouri

arxiv:1010.3971 v2 · 2010-10-19 · gr-qc · astro-ph.CO

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JD5AG4P3IJURMOAZCT3BOCQEYM}

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	2026-05-18T02:05:01.102295Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

48fa0371fb426916381914f6170a04c32482d07428e3c06c42e8da3c12f1b784

Aliases

arxiv: 1010.3971 · arxiv_version: 1010.3971v2 · doi: 10.48550/arxiv.1010.3971 · pith_short_12: JD5AG4P3IJUR · pith_short_16: JD5AG4P3IJURMOAZ · pith_short_8: JD5AG4P3

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/JD5AG4P3IJURMOAZCT3BOCQEYM \
  | 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: 48fa0371fb426916381914f6170a04c32482d07428e3c06c42e8da3c12f1b784

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b125bbc8bba676ed65d4db6b74ce753f5cf124adbeb7a24c8d72b155c6a89c83",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2010-10-19T16:32:22Z",
    "title_canon_sha256": "e74fa272ecb6615cb4e16b98eba8b1f0a46134a0f7bc82e975c5ac8d6a861c67"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1010.3971",
    "kind": "arxiv",
    "version": 2
  }
}