Pith Number

pith:DB74HGGT

pith:2019:DB74HGGTRXDX2BKEIQTAZEC5RC

not attested not anchored not stored refs pending

A Syntactic Model of Mutation and Aliasing

Computer Science, Elena Zucca (DIBRIS, Marco Servetto (School of Engineering, Paola Giannini (DiSIT, Universita' del Piemonte Orientale), Universita' di Genova), Victoria University of Wellington)

arxiv:1904.10107 v1 · 2019-04-23 · cs.PL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DB74HGGTRXDX2BKEIQTAZEC5RC}

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	2026-05-17T23:47:55.090771Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

187fc398d38dc77d054444260c905d88855c7a3eaa3a0936b29d96822ae6ffbb

Aliases

arxiv: 1904.10107 · arxiv_version: 1904.10107v1 · doi: 10.48550/arxiv.1904.10107 · pith_short_12: DB74HGGTRXDX · pith_short_16: DB74HGGTRXDX2BKE · pith_short_8: DB74HGGT

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/DB74HGGTRXDX2BKEIQTAZEC5RC \
  | 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: 187fc398d38dc77d054444260c905d88855c7a3eaa3a0936b29d96822ae6ffbb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dc2f52c44375fd3143fbbad17215e9d4958efdbbaba535fd6fedcdf6cc2fb5a0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.PL",
    "submitted_at": "2019-04-23T00:53:48Z",
    "title_canon_sha256": "986ca034a1436fea3e4e1ed9cfe33ea1fcdcfa7745b85c7cfe6ecfbb08d1ef5a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.10107",
    "kind": "arxiv",
    "version": 1
  }
}