Pith Number

pith:T5K32KPQ

pith:2015:T5K32KPQSNZQ2KJQGMS2MEJOC6

not attested not anchored not stored refs pending

Realization and Extension of Abstract Operation Contracts for Program Logic

Maria Pelevina

arxiv:1501.04359 v1 · 2015-01-18 · 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{T5K32KPQSNZQ2KJQGMS2MEJOC6}

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	2026-05-18T02:29:09.266869Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9f55bd29f093730d29303325a6112e17a9d93f77828cc06cde554d04b5a8530b

Aliases

arxiv: 1501.04359 · arxiv_version: 1501.04359v1 · doi: 10.48550/arxiv.1501.04359 · pith_short_12: T5K32KPQSNZQ · pith_short_16: T5K32KPQSNZQ2KJQ · pith_short_8: T5K32KPQ

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/T5K32KPQSNZQ2KJQGMS2MEJOC6 \
  | 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: 9f55bd29f093730d29303325a6112e17a9d93f77828cc06cde554d04b5a8530b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f605ef1102649bf8eafe9955ed0fa69efb0d73094227c79e49f22dfa706b86c7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2015-01-18T22:00:13Z",
    "title_canon_sha256": "90e1af76f3ecf1fad3b16a703eee8cb1ba29fdae64739e9f6af4aa459a5561e6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1501.04359",
    "kind": "arxiv",
    "version": 1
  }
}