Pith Number

pith:7B7ERWAO

pith:2017:7B7ERWAORJBEEEEUFRL4KK6DXD

not attested not anchored not stored refs pending

An improved high order finite difference method for non-conforming grid interfaces for the wave equation

Siyang Wang

arxiv:1702.02056 v3 · 2017-02-07 · 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{7B7ERWAORJBEEEEUFRL4KK6DXD}

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	2026-05-18T00:18:41.575646Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f87e48d80e8a424210942c57c52bc3b8d0d443861d661ab38355f22c304030f6

Aliases

arxiv: 1702.02056 · arxiv_version: 1702.02056v3 · doi: 10.48550/arxiv.1702.02056 · pith_short_12: 7B7ERWAORJBE · pith_short_16: 7B7ERWAORJBEEEEU · pith_short_8: 7B7ERWAO

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/7B7ERWAORJBEEEEUFRL4KK6DXD \
  | 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: f87e48d80e8a424210942c57c52bc3b8d0d443861d661ab38355f22c304030f6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "299c221e2e40181c520c033084b1749bab1374f5be6e466c16cf5c8c9aac70b7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2017-02-07T15:26:14Z",
    "title_canon_sha256": "b3dbdfba91ad25e6e0ba2ccb94b2d339c5308da7a598a81718448f08cd4c57f6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.02056",
    "kind": "arxiv",
    "version": 3
  }
}