Pith Number

pith:PDNZP45P

pith:2020:PDNZP45PQDRT26XBX7GBJ5BNRJ

not attested not anchored not stored refs pending

Lossy Checkpoint Compression in Full Waveform Inversion: a case study with ZFPv0.5.5 and the Overthrust Model

Gerard J. Gorman, Jan Hueckelheim, John Washbourne, Mathias Louboutin, Navjot Kukreja, Paul H.J. Kelly

arxiv:2009.12623 v2 · 2020-09-26 · physics.comp-ph · cs.NA · 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{PDNZP45PQDRT26XBX7GBJ5BNRJ}

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	2026-07-05T03:14:45.200081Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

78db97f3af80e33d7ae1bfcc14f42d8a78e1cfe415c73c76d117c27aedb77f2e

Aliases

arxiv: 2009.12623 · arxiv_version: 2009.12623v2 · doi: 10.48550/arxiv.2009.12623 · pith_short_12: PDNZP45PQDRT · pith_short_16: PDNZP45PQDRT26XB · pith_short_8: PDNZP45P

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/PDNZP45PQDRT26XBX7GBJ5BNRJ \
  | 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: 78db97f3af80e33d7ae1bfcc14f42d8a78e1cfe415c73c76d117c27aedb77f2e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7f4e59045e817fd1de54470bf2481b0f2151aa95619c04eab6f4f75badac2301",
    "cross_cats_sorted": [
      "cs.NA",
      "math.NA"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "physics.comp-ph",
    "submitted_at": "2020-09-26T15:38:02Z",
    "title_canon_sha256": "5d8961dd8960e1084a1e140fd3d0fac707f837dc5270c7f6ccad1ac5bdbe4e09"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2009.12623",
    "kind": "arxiv",
    "version": 2
  }
}