Pith Number

pith:JWLQW6BX

pith:2025:JWLQW6BX7TCF4JQSC6JDS2X5UK

not attested not anchored not stored refs pending

The Boussinesq equation on the half-line

Christophe Charlier

arxiv:2504.19663 v1 · 2025-04-28 · math.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JWLQW6BX7TCF4JQSC6JDS2X5UK}

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	2026-07-05T10:55:01.067794Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4d970b7837fcc45e26121792396afda2916f9c5d9a6b7bc020b04f5eb46062cb

Aliases

arxiv: 2504.19663 · arxiv_version: 2504.19663v1 · doi: 10.48550/arxiv.2504.19663 · pith_short_12: JWLQW6BX7TCF · pith_short_16: JWLQW6BX7TCF4JQS · pith_short_8: JWLQW6BX

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/JWLQW6BX7TCF4JQSC6JDS2X5UK \
  | 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: 4d970b7837fcc45e26121792396afda2916f9c5d9a6b7bc020b04f5eb46062cb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c4a1db98f585eb160ed19aa8d215ae86c9ea848c3d8ec7e11fd2babee71c4e74",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2025-04-28T10:21:54Z",
    "title_canon_sha256": "d0ffe48f6be3dd9f80fba8b86b18fac1df38cc6e3d03bd873c686d510b8b9ed4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2504.19663",
    "kind": "arxiv",
    "version": 1
  }
}