Pith Number

pith:ZY6HBQSF

pith:1997:ZY6HBQSFYCXFSAO4PFYKFDSOSG

not attested not anchored not stored refs pending

The tidal disruption of protoplanetary accretion discs

John D. Larwood

arxiv:astro-ph/9705252 v1 · 1997-05-30 · 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{ZY6HBQSFYCXFSAO4PFYKFDSOSG}

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	2026-05-18T01:40:17.404433Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ce3c70c245c0ae5901dc7970a28e4e91b60a5545390abc051fc3839fd6044086

Aliases

arxiv: astro-ph/9705252 · arxiv_version: astro-ph/9705252v1 · doi: 10.48550/arxiv.astro-ph/9705252 · pith_short_12: ZY6HBQSFYCXF · pith_short_16: ZY6HBQSFYCXFSAO4 · pith_short_8: ZY6HBQSF

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/ZY6HBQSFYCXFSAO4PFYKFDSOSG \
  | 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: ce3c70c245c0ae5901dc7970a28e4e91b60a5545390abc051fc3839fd6044086

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "777d0a71941d87a9da193b4c96c42882481b24e7559d20e27efe1003cbb88418",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1997-05-30T17:56:03Z",
    "title_canon_sha256": "b6cbb8fc772d9ef2554d1a679c322d4c09850a5f5c0a7a3e2ed94849947edbb1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9705252",
    "kind": "arxiv",
    "version": 1
  }
}