Pith Number

pith:ALQK44EY

pith:2008:ALQK44EYHJDJDDURZ7ATNHJE4Q

not attested not anchored not stored refs pending

An explicit finite difference scheme for the Camassa-Holm equation

Giuseppe Maria Coclite, Kenneth H. Karlsen, Nils Henrik Risebro

arxiv:0802.3129 v1 · 2008-02-21 · math.AP · cs.NA · math.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ALQK44EYHJDJDDURZ7ATNHJE4Q}

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	2026-06-03T22:06:04.622001Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

02e0ae70983a46918e91cfc1369d24e43bbb5c15b1455eb6cf5c3499d4a29bc9

Aliases

arxiv: 0802.3129 · arxiv_version: 0802.3129v1 · doi: 10.48550/arxiv.0802.3129 · pith_short_12: ALQK44EYHJDJ · pith_short_16: ALQK44EYHJDJDDUR · pith_short_8: ALQK44EY

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/ALQK44EYHJDJDDURZ7ATNHJE4Q \
  | 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: 02e0ae70983a46918e91cfc1369d24e43bbb5c15b1455eb6cf5c3499d4a29bc9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "509a4af97de4504b1e8ae507f8e66a95fdabe272ab24ddd905f6c4904ef55d65",
    "cross_cats_sorted": [
      "cs.NA",
      "math.NA"
    ],
    "license": "http://creativecommons.org/licenses/publicdomain/",
    "primary_cat": "math.AP",
    "submitted_at": "2008-02-21T15:12:28Z",
    "title_canon_sha256": "4c7cb590732a06e9a8017cb9d0e3ffd60de236fd700a6cc4994272c736424802"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0802.3129",
    "kind": "arxiv",
    "version": 1
  }
}