Pith Number

pith:GW3CLIEE

pith:1999:GW3CLIEE3RI43VKXPJTTX7URYN

not attested not anchored not stored refs pending

Non-linear coupling of spiral waves in disk galaxies: a numerical study

F.Masset, M.Tagger

arxiv:astro-ph/9902125 v1 · 1999-02-08 · 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{GW3CLIEE3RI43VKXPJTTX7URYN}

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	2026-05-18T04:21:32.415452Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

35b625a084dc51cdd5577a673bfe91c3546560a2a0b54cbb1e60c7abcc39420c

Aliases

arxiv: astro-ph/9902125 · arxiv_version: astro-ph/9902125v1 · doi: 10.48550/arxiv.astro-ph/9902125 · pith_short_12: GW3CLIEE3RI4 · pith_short_16: GW3CLIEE3RI43VKX · pith_short_8: GW3CLIEE

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/GW3CLIEE3RI43VKXPJTTX7URYN \
  | 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: 35b625a084dc51cdd5577a673bfe91c3546560a2a0b54cbb1e60c7abcc39420c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b52f1c71aebcbb7645328490af35e5a64f759b89ef81fbc813ae95a49f9b9c79",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1999-02-08T19:15:50Z",
    "title_canon_sha256": "fd7a37c1afa07e7a0e8cb8d39f5ed5d2ee2f11fc4f04ec7f92ac4b2888b1e791"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9902125",
    "kind": "arxiv",
    "version": 1
  }
}