Pith Number

pith:KCK33RQE

pith:2019:KCK33RQERKR3UQORZ2LW53X32H

not attested not anchored not stored refs pending

Debunking the Myth that Upfront Requirements are Infeasible for Scientific Computing Software

Malavika Srinivasan, Spencer Smith, Sumanth Shankar

arxiv:1906.07812 v1 · 2019-06-18 · cs.SE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{KCK33RQERKR3UQORZ2LW53X32H}

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	2026-05-17T23:42:57.661256Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5095bdc6048aa3ba41d1ce976eeefbd1f1d39f4b43996da90d693cac875574bd

Aliases

arxiv: 1906.07812 · arxiv_version: 1906.07812v1 · doi: 10.48550/arxiv.1906.07812 · pith_short_12: KCK33RQERKR3 · pith_short_16: KCK33RQERKR3UQOR · pith_short_8: KCK33RQE

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/KCK33RQERKR3UQORZ2LW53X32H \
  | 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: 5095bdc6048aa3ba41d1ce976eeefbd1f1d39f4b43996da90d693cac875574bd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7c4dee955d027e8735a40e01f47f31e5d7d38908c8fae28b7f079e4a4d52a68d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2019-06-18T21:11:31Z",
    "title_canon_sha256": "f6f3af45d16fd2f8c8fc70ecbc6d943d649645a61899863df1ecf0ee83eadf7c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.07812",
    "kind": "arxiv",
    "version": 1
  }
}