Pith Number

pith:PT4QVBL7

pith:1998:PT4QVBL76CCKBRYGO4SEAUZX4Q

not attested not anchored not stored refs pending

The dynamics of a low-order coupled ocean-atmosphere model

F. Verhulst, L. van Veen, T. Opsteegh

arxiv:chao-dyn/9812024 v1 · 1998-12-16 · chao-dyn · nlin.CD · physics.ao-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{PT4QVBL76CCKBRYGO4SEAUZX4Q}

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	2026-05-18T01:40:11.495084Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7cf90a857ff084a0c7067724405337e41980cdf38f3491d944a0063430126b63

Aliases

arxiv: chao-dyn/9812024 · arxiv_version: chao-dyn/9812024v1 · doi: 10.48550/arxiv.chao-dyn/9812024 · pith_short_12: PT4QVBL76CCK · pith_short_16: PT4QVBL76CCKBRYG · pith_short_8: PT4QVBL7

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/PT4QVBL76CCKBRYGO4SEAUZX4Q \
  | 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: 7cf90a857ff084a0c7067724405337e41980cdf38f3491d944a0063430126b63

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "011e09ab8ce86bb45ecc1ae6153f2a399ef58659062a1a7ac792854dbfa89aca",
    "cross_cats_sorted": [
      "nlin.CD",
      "physics.ao-ph"
    ],
    "license": "",
    "primary_cat": "chao-dyn",
    "submitted_at": "1998-12-16T17:39:01Z",
    "title_canon_sha256": "1c9d05551c15e09050e446fa8946df2b1f9df93ff113362e6be82c51e657b29d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "chao-dyn/9812024",
    "kind": "arxiv",
    "version": 1
  }
}