Pith Number

pith:4XO5YCY7

pith:2000:4XO5YCY7SEALVNSD2BSO6PZVU5

not attested not anchored not stored refs pending

Formation of intermediate-mass black holes in circumnuclear regions of galaxies

Satoru Ikeuchi, Takeshi G. Tsuru, Yasuhiro Shioya, Yoshiaki Taniguchi

arxiv:astro-ph/0002389 v1 · 2000-02-21 · 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{4XO5YCY7SEALVNSD2BSO6PZVU5}

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	2026-05-18T01:40:48.281123Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e5dddc0b1f9100bab643d064ef3f35a748b6a8f53a4b5fb1770b395a37ad7aed

Aliases

arxiv: astro-ph/0002389 · arxiv_version: astro-ph/0002389v1 · doi: 10.48550/arxiv.astro-ph/0002389 · pith_short_12: 4XO5YCY7SEAL · pith_short_16: 4XO5YCY7SEALVNSD · pith_short_8: 4XO5YCY7

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/4XO5YCY7SEALVNSD2BSO6PZVU5 \
  | 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: e5dddc0b1f9100bab643d064ef3f35a748b6a8f53a4b5fb1770b395a37ad7aed

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "242cf792e51710f1807627ba38f09dc539a7bcf15ad1908a7ed755a11d4a5dc6",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2000-02-21T13:34:21Z",
    "title_canon_sha256": "fd2d76411988aa1ed19178d250963711c113c87d91bdc0eb7b70a67aa6e4a63b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0002389",
    "kind": "arxiv",
    "version": 1
  }
}