Pith Number

pith:3LNMD2LQ

pith:2001:3LNMD2LQ2NMBXQBUAAV4XDD4K7

not attested not anchored not stored refs pending

Evolution of massive binary black holes

Qingjuan Yu (Princeton University Observatory)

arxiv:astro-ph/0109530 v1 · 2001-09-27 · 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{3LNMD2LQ2NMBXQBUAAV4XDD4K7}

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.

Cited by

1 paper in Pith

Waveform Modelling for the Laser Interferometer Space Antenna

Receipt and verification

First computed	2026-07-04T16:24:12.171683Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dadac1e970d3581bc034002bcb8c7c57c4adb2d182172caa6d060d91b2fad3ef

Aliases

arxiv: astro-ph/0109530 · arxiv_version: astro-ph/0109530v1 · doi: 10.48550/arxiv.astro-ph/0109530 · pith_short_12: 3LNMD2LQ2NMB · pith_short_16: 3LNMD2LQ2NMBXQBU · pith_short_8: 3LNMD2LQ

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/3LNMD2LQ2NMBXQBUAAV4XDD4K7 \
  | 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: dadac1e970d3581bc034002bcb8c7c57c4adb2d182172caa6d060d91b2fad3ef

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e8c98289935796f6d8c88add6c81053970eb039ad9f174765a0750d2eca3121a",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2001-09-27T20:51:09Z",
    "title_canon_sha256": "f35e2fb5cc554fe3076b713dfa817f9ea7bfdbf5958ee0064ccea397de7d14ef"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0109530",
    "kind": "arxiv",
    "version": 1
  }
}