Pith Number

pith:O64HWIQ4

pith:2004:O64HWIQ4WNSHNTJTO77T75NRCT

not attested not anchored not stored refs pending

A class of equations with peakon and pulson solutions (with an Appendix by Harry Braden and John Byatt-Smith)

Andrew N.W. Hone, Darryl D. Holm

arxiv:nlin/0412029 v1 · 2004-12-10 · nlin.SI · nlin.PS

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{O64HWIQ4WNSHNTJTO77T75NRCT}

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	2026-05-18T01:38:18.815138Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

77b87b221cb36476cd3377ff3ff5b114f8cc0e3e9058da9952562fe2cf6f87cc

Aliases

arxiv: nlin/0412029 · arxiv_version: nlin/0412029v1 · doi: 10.48550/arxiv.nlin/0412029 · pith_short_12: O64HWIQ4WNSH · pith_short_16: O64HWIQ4WNSHNTJT · pith_short_8: O64HWIQ4

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/O64HWIQ4WNSHNTJTO77T75NRCT \
  | 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: 77b87b221cb36476cd3377ff3ff5b114f8cc0e3e9058da9952562fe2cf6f87cc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e36fc0a254c7995856eae6593fcfe37029446e3d455ab825cdcd398194d6145c",
    "cross_cats_sorted": [
      "nlin.PS"
    ],
    "license": "",
    "primary_cat": "nlin.SI",
    "submitted_at": "2004-12-10T17:44:59Z",
    "title_canon_sha256": "9fe80c0165335c47e8a573cc3c30ecc04f440d51f1c3150d71eacb5e1c234811"
  },
  "schema_version": "1.0",
  "source": {
    "id": "nlin/0412029",
    "kind": "arxiv",
    "version": 1
  }
}