Pith Number

pith:LD4KVRE5

pith:2018:LD4KVRE54J7PPROV4AN6OH4QHY

not attested not anchored not stored refs pending

Wavefield Finite Time Focusing with Reduced Spatial Exposure

Giovanni Angelo Meles, Joost van der Neut, Kees Wapenaar, Koen W. A. van Dongen

arxiv:1812.04619 v3 · 2018-12-11 · physics.class-ph · physics.comp-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LD4KVRE54J7PPROV4AN6OH4QHY}

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	2026-07-05T12:09:07.916077Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

58f8aac49de27ef7c5d5e01be71f903e13af65c2b6bdea4505b58167f96dd3aa

Aliases

arxiv: 1812.04619 · arxiv_version: 1812.04619v3 · doi: 10.48550/arxiv.1812.04619 · pith_short_12: LD4KVRE54J7P · pith_short_16: LD4KVRE54J7PPROV · pith_short_8: LD4KVRE5

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/LD4KVRE54J7PPROV4AN6OH4QHY \
  | 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: 58f8aac49de27ef7c5d5e01be71f903e13af65c2b6bdea4505b58167f96dd3aa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f389ab29f7537da5d01c1073a3c9acc182ca5aaf67f134824c82b6c1d7d00b54",
    "cross_cats_sorted": [
      "physics.comp-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.class-ph",
    "submitted_at": "2018-12-11T10:44:00Z",
    "title_canon_sha256": "821995e9272d0d25c79b1873f36777346b76ac91ce639639a373d7903baab56d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.04619",
    "kind": "arxiv",
    "version": 3
  }
}