Pith Number

pith:4IAM4MK2

pith:2004:4IAM4MK2SFU7HQVZ4EXWTFPVGO

not attested not anchored not stored refs pending

The precession of orbital plane and the significant variabilities of binary pulsars

Biping Gong

arxiv:astro-ph/0401152 v8 · 2004-01-09 · 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{4IAM4MK2SFU7HQVZ4EXWTFPVGO}

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	2026-07-04T14:13:17.029549Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e200ce315a9169f3c2b9e12f6995f53391419e5d3c689cba3a69d408c96d5db6

Aliases

arxiv: astro-ph/0401152 · arxiv_version: astro-ph/0401152v8 · doi: 10.48550/arxiv.astro-ph/0401152 · pith_short_12: 4IAM4MK2SFU7 · pith_short_16: 4IAM4MK2SFU7HQVZ · pith_short_8: 4IAM4MK2

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/4IAM4MK2SFU7HQVZ4EXWTFPVGO \
  | 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: e200ce315a9169f3c2b9e12f6995f53391419e5d3c689cba3a69d408c96d5db6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6ecd9c735bf57bfa1d52b7f292cbbfa2e777b67ca91a76d6d6078028b52453a3",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-01-09T15:46:22Z",
    "title_canon_sha256": "b19c11c180811768e5072e82271ae359c7c38a333fa4936ac8051bd8fd644e1f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0401152",
    "kind": "arxiv",
    "version": 8
  }
}