Pith Number

pith:Q2KF5UPG

pith:2010:Q2KF5UPGJN5BFMDTEV5YNOR4WS

not attested not anchored not stored refs pending

A direct method for solving the generalized sine-Gordon equation II

Yoshimasa Matsuno

arxiv:1007.1525 v1 · 2010-07-09 · nlin.SI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Q2KF5UPGJN5BFMDTEV5YNOR4WS}

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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	2026-05-18T02:06:23.527927Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

86945ed1e64b7a12b073257b86ba3cb4be3ca78e66ac264560691205206ce52b

Aliases

arxiv: 1007.1525 · arxiv_version: 1007.1525v1 · doi: 10.48550/arxiv.1007.1525 · pith_short_12: Q2KF5UPGJN5B · pith_short_16: Q2KF5UPGJN5BFMDT · pith_short_8: Q2KF5UPG

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/Q2KF5UPGJN5BFMDTEV5YNOR4WS \
  | 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: 86945ed1e64b7a12b073257b86ba3cb4be3ca78e66ac264560691205206ce52b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9bd12b26b1b3c4bcbd61b8a0742349d08b8a896e4460b1809bcdbe0c6a4a26a9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nlin.SI",
    "submitted_at": "2010-07-09T08:02:20Z",
    "title_canon_sha256": "f1cb5a10e458bcabc986729101df7a8550ba766ec8ae201b8d9187e6f7635cfc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1007.1525",
    "kind": "arxiv",
    "version": 1
  }
}