Pith Number

pith:I4N3FM2K

pith:2026:I4N3FM2K7H2A5ZRGZEOUPV7GHR

not attested not anchored not stored refs pending

High-Order Summation-By-Parts Schemes for First-Order Hyperbolic Systems in Curvilinear Coordinates with Singularities

Erik Schnetter, Stamatis Vretinaris

arxiv:2606.05155 v1 · 2026-06-03 · gr-qc · 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{I4N3FM2K7H2A5ZRGZEOUPV7GHR}

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	2026-06-04T02:07:54.243014Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

471bb2b34af9f40ee626c91d47d7e63c7e7d658d10e301d7d06daa37a726c6f1

Aliases

arxiv: 2606.05155 · arxiv_version: 2606.05155v1 · doi: 10.48550/arxiv.2606.05155 · pith_short_12: I4N3FM2K7H2A · pith_short_16: I4N3FM2K7H2A5ZRG · pith_short_8: I4N3FM2K

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/I4N3FM2K7H2A5ZRGZEOUPV7GHR \
  | 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: 471bb2b34af9f40ee626c91d47d7e63c7e7d658d10e301d7d06daa37a726c6f1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "052f9e9dbbd8edd197eaa00238cd99ca291d6d04872dbd734cd997e22ad7a720",
    "cross_cats_sorted": [
      "cs.NA",
      "math.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2026-06-03T17:56:17Z",
    "title_canon_sha256": "56d94c20f07baf36d2318af7da6de7d86fb2a56c9063998891e725856e94810c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.05155",
    "kind": "arxiv",
    "version": 1
  }
}