Pith Number

pith:CPM3LYTS

pith:2018:CPM3LYTSDYHAXVESQCP4M3D4ST

not attested not anchored not stored refs pending

Seismic Inversion and the Data Normalization for Optimal Transport

Bj\"orn Engquist, Yunan Yang

arxiv:1810.08686 v1 · 2018-10-19 · 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{CPM3LYTSDYHAXVESQCP4M3D4ST}

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	2026-05-18T00:02:43.802912Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

13d9b5e2721e0e0bd492809fc66c7c94c0ee6fb7e884528ce5a8316ceb361866

Aliases

arxiv: 1810.08686 · arxiv_version: 1810.08686v1 · doi: 10.48550/arxiv.1810.08686 · pith_short_12: CPM3LYTSDYHA · pith_short_16: CPM3LYTSDYHAXVES · pith_short_8: CPM3LYTS

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/CPM3LYTSDYHAXVESQCP4M3D4ST \
  | 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: 13d9b5e2721e0e0bd492809fc66c7c94c0ee6fb7e884528ce5a8316ceb361866

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dd66faed664ee1a7e5b99d79dd5bb0561cd6abdc02c8065cac00dd1d52f15e40",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-10-19T20:53:09Z",
    "title_canon_sha256": "cd3e47d61bb571d69fd7e0118f62eb0a0fccb145bbc2787882ac34f7719ba50d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.08686",
    "kind": "arxiv",
    "version": 1
  }
}