Pith Number

pith:HA22TDDH

pith:2012:HA22TDDHVJ2N6SPIISIXZJWAZW

not attested not anchored not stored refs pending

The Doubling of Stellar Black Hole Nuclei

Jihad R. Touma, Mher V. Kazandjian

arxiv:1207.1108 v1 · 2012-07-04 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HA22TDDHVJ2N6SPIISIXZJWAZW}

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	2026-05-18T01:56:34.667739Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3835a98c67aa74df49e844917ca6c0cd83b56fddfedafe5d48f21959be4eb36d

Aliases

arxiv: 1207.1108 · arxiv_version: 1207.1108v1 · doi: 10.48550/arxiv.1207.1108 · pith_short_12: HA22TDDHVJ2N · pith_short_16: HA22TDDHVJ2N6SPI · pith_short_8: HA22TDDH

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/HA22TDDHVJ2N6SPIISIXZJWAZW \
  | 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: 3835a98c67aa74df49e844917ca6c0cd83b56fddfedafe5d48f21959be4eb36d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5e24d66c6672c03d1d0f4bc383724b87cb87b91426cd4cb1c19b6c7dd4821a9f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2012-07-04T20:02:18Z",
    "title_canon_sha256": "da13e639fc98b00e11bb92a29f5ba8c6ffdf54962b869b8c400d7cca02719baa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.1108",
    "kind": "arxiv",
    "version": 1
  }
}