Pith Number

pith:IQS3VAXI

pith:2019:IQS3VAXIKBZAPHIYNYNEH3OWFG

not attested not anchored not stored refs pending

Sharing and Learning Alloy on the Web

Alcino Cunha, Ana C. R. Paiva, Daniel Silva, Jos\'e Pereira, Miguel S. Ramalho, Nuno Macedo, Renato Carvalho, Ricardo Silva

arxiv:1907.02275 v1 · 2019-07-04 · cs.CY · 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{IQS3VAXIKBZAPHIYNYNEH3OWFG}

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	2026-05-17T23:41:16.926216Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4425ba82e85072079d186e1a43edd629882ade6ab1d0a2598e5d001cd081fb57

Aliases

arxiv: 1907.02275 · arxiv_version: 1907.02275v1 · doi: 10.48550/arxiv.1907.02275 · pith_short_12: IQS3VAXIKBZA · pith_short_16: IQS3VAXIKBZAPHIY · pith_short_8: IQS3VAXI

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/IQS3VAXIKBZAPHIYNYNEH3OWFG \
  | 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: 4425ba82e85072079d186e1a43edd629882ade6ab1d0a2598e5d001cd081fb57

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "13422e007bb7770e5c8ef945157b9cda11ce79687dd90f5e2aacc471073ab84c",
    "cross_cats_sorted": [
      "cs.SE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CY",
    "submitted_at": "2019-07-04T08:35:32Z",
    "title_canon_sha256": "d1c26e6fa6d9a18b997407cc3c8fe195ef1e205c76395763640a64a5e13f67c4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.02275",
    "kind": "arxiv",
    "version": 1
  }
}