Pith Number

pith:L6MFKKUK

pith:1999:L6MFKKUKMOHHGFWHQH3IGLXRWK

not attested not anchored not stored refs pending

The formation and merger of compact objects in central engine of active galactic nuclei and quasars: gamma-ray burst and gravitational radiation

Jian-Min Wang, K.S. Cheng

arxiv:astro-ph/9908228 v1 · 1999-08-20 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{L6MFKKUKMOHHGFWHQH3IGLXRWK}

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	2026-07-04T16:11:31.963498Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5f98552a8a638e7316c781f6832ef1b2b8d09cc3ffb318e98b0af6e5a93493a3

Aliases

arxiv: astro-ph/9908228 · arxiv_version: astro-ph/9908228v1 · doi: 10.48550/arxiv.astro-ph/9908228 · pith_short_12: L6MFKKUKMOHH · pith_short_16: L6MFKKUKMOHHGFWH · pith_short_8: L6MFKKUK

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/L6MFKKUKMOHHGFWHQH3IGLXRWK \
  | 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: 5f98552a8a638e7316c781f6832ef1b2b8d09cc3ffb318e98b0af6e5a93493a3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ee836e4360220e41fecb05ba893355be07ea5e327d2e9a7d59732415fa813c50",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1999-08-20T08:48:40Z",
    "title_canon_sha256": "38edebe43b7518f1034854771981d4488e1a5ffc236c3c9280577d6e41fad6f0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9908228",
    "kind": "arxiv",
    "version": 1
  }
}