Pith Number

pith:WDDQZEGC

pith:2020:WDDQZEGC2ZBFK5ETPZJSM3FLES

not attested not anchored not stored refs pending

On the implementation of large-scale integral operators with modern HPC solutions -- Application to 3D Marchenko imaging by least-squares inversion

Ivan Vasconcelos, Matteo Ravasi

arxiv:2011.11120 v1 · 2020-11-22 · physics.geo-ph · cs.CE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WDDQZEGC2ZBFK5ETPZJSM3FLES}

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	2026-07-05T01:53:29.918326Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b0c70c90c2d6425574937e53266cab24a37c15ae31d8f7c249afbb74eb5935ec

Aliases

arxiv: 2011.11120 · arxiv_version: 2011.11120v1 · doi: 10.48550/arxiv.2011.11120 · pith_short_12: WDDQZEGC2ZBF · pith_short_16: WDDQZEGC2ZBFK5ET · pith_short_8: WDDQZEGC

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/WDDQZEGC2ZBFK5ETPZJSM3FLES \
  | 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: b0c70c90c2d6425574937e53266cab24a37c15ae31d8f7c249afbb74eb5935ec

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5f7fd19d1b33f20a3b01894529040a3be4354b98f1ac6ac39c0d97e0d7816d12",
    "cross_cats_sorted": [
      "cs.CE"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.geo-ph",
    "submitted_at": "2020-11-22T22:09:28Z",
    "title_canon_sha256": "f9249f57f95dcbe2bdc41ffcb8055b62985d6e71af2a21e06218f3a5a8a76778"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2011.11120",
    "kind": "arxiv",
    "version": 1
  }
}