Pith Number

pith:WGYVJU5W

pith:2019:WGYVJU5WQSV4ZBL7JGAEZIDUW2

not attested not anchored not stored refs pending

Application Usability Levels: A Framework for Tracking Project Product Progress

Adam C. Kellerman, Alexa J. Halford, Angeline G. Burrell, Antti Pulkkinen, Barbara J. Thompson, Brett A. Carter, Brian M. Walsh, Carl J. Henney, Consuelo Cid, Daniel T. Welling, James P. McCollough, Jeffrey Klenzing, Katherine Garcia-Sage, K. D. Leka, Mario M. Bisi, Michael W. Liemohn, Mike Terkildsen, Natalia Y. Ganushkina, Ryan M. McGranaghan, Shing F. Fung, Sophie A. Murray, Steven K. Morley, Suzy Bingham, Timothy Guild

arxiv:1907.08663 v1 · 2019-07-19 · astro-ph.IM · physics.app-ph · physics.space-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{WGYVJU5WQSV4ZBL7JGAEZIDUW2}

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	2026-05-17T23:40:08.214463Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b1b154d3b684abcc857f49804ca074b69a821b6fad79a26495c2d56bdb7640b3

Aliases

arxiv: 1907.08663 · arxiv_version: 1907.08663v1 · doi: 10.48550/arxiv.1907.08663 · pith_short_12: WGYVJU5WQSV4 · pith_short_16: WGYVJU5WQSV4ZBL7 · pith_short_8: WGYVJU5W

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/WGYVJU5WQSV4ZBL7JGAEZIDUW2 \
  | 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: b1b154d3b684abcc857f49804ca074b69a821b6fad79a26495c2d56bdb7640b3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ad420255627cedd24a9b66425c5873a0ca18df3827d7b456ca3bbe45549b0fe4",
    "cross_cats_sorted": [
      "physics.app-ph",
      "physics.space-ph"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2019-07-19T19:56:31Z",
    "title_canon_sha256": "77745989c8ef5e946c7ab8d8a358b09000f00173f588199752d90353b3c63c3f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.08663",
    "kind": "arxiv",
    "version": 1
  }
}