Pith Number

pith:JQOR2TTQ

pith:2021:JQOR2TTQI5NPZKCA6JSJY4ELKV

not attested not anchored not stored refs pending

A National Discovery Cloud: Preparing the US for Global Competitiveness in the New Era of 21st Century Digital Transformation

Bill Gropp, Daniel Lopresti, Ian Foster, Katie Schuman, Mark D. Hill

arxiv:2104.06953 v2 · 2021-04-14 · cs.CY

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JQOR2TTQI5NPZKCA6JSJY4ELKV}

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	2026-07-05T02:33:09.124808Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4c1d1d4e70475afca840f2649c708b55436cc070fbae326a8c6972f4e433f72d

Aliases

arxiv: 2104.06953 · arxiv_version: 2104.06953v2 · doi: 10.48550/arxiv.2104.06953 · pith_short_12: JQOR2TTQI5NP · pith_short_16: JQOR2TTQI5NPZKCA · pith_short_8: JQOR2TTQ

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/JQOR2TTQI5NPZKCA6JSJY4ELKV \
  | 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: 4c1d1d4e70475afca840f2649c708b55436cc070fbae326a8c6972f4e433f72d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fd058ab295f00fcac74db0a259f7aa0555fb7da5b17d94eeb018a8bccaa4e300",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CY",
    "submitted_at": "2021-04-14T16:26:53Z",
    "title_canon_sha256": "572a370ea02c5b465f6f92e34e8f4e92d10ad5c8ef62c6bb87106743c3ea2cc4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2104.06953",
    "kind": "arxiv",
    "version": 2
  }
}