Pith Number

pith:2L7RVYX7

pith:2018:2L7RVYX7PBSBWUDY7ITTIKQA7C

not attested not anchored not stored refs pending

A parameterization analysis for acoustic full-waveform inversion of sub-wavelength anomalies

Guy Drijkoningen, Pawan Bharadwaj, Wim Mulder

arxiv:1804.01184 v1 · 2018-04-03 · physics.geo-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{2L7RVYX7PBSBWUDY7ITTIKQA7C}

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	2026-05-18T00:19:15.825810Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d2ff1ae2ff78641b5078fa27342a00f8b62a2c388aa12ad29f9dcb8a8a08183b

Aliases

arxiv: 1804.01184 · arxiv_version: 1804.01184v1 · doi: 10.48550/arxiv.1804.01184 · pith_short_12: 2L7RVYX7PBSB · pith_short_16: 2L7RVYX7PBSBWUDY · pith_short_8: 2L7RVYX7

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/2L7RVYX7PBSBWUDY7ITTIKQA7C \
  | 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: d2ff1ae2ff78641b5078fa27342a00f8b62a2c388aa12ad29f9dcb8a8a08183b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c84243387d04287d07095c4a173591e844d0927ea35dfa43ca18730145c14d18",
    "cross_cats_sorted": [
      "physics.comp-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.geo-ph",
    "submitted_at": "2018-04-03T22:30:05Z",
    "title_canon_sha256": "794e2501f881e50e1f657296ea9eb4108041c6e3c1abce8a19c6e3e676f7cb8e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.01184",
    "kind": "arxiv",
    "version": 1
  }
}