Pith Number

pith:DREKYCY7

pith:2016:DREKYCY77NAAXJFS3CD4IDWERG

not attested not anchored not stored refs pending

Retractable Contracts

Franco Barbanera (Dipartimento di Matematica e Informatica, Ivan Lanese (Dipartimento di Informatica - Scienza e Ingegneria, Mariangiola Dezani-Ciancaglini (Dipartimento di Informatica, Ugo de'Liguoro (Dipartimento di Informatica, University of Bologna/INRIA), University of Catania), University of Torino)

arxiv:1602.03595 v1 · 2016-02-11 · cs.LO · 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{DREKYCY77NAAXJFS3CD4IDWERG}

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	2026-05-18T01:20:57.028151Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1c48ac0b1ffb400ba4b2d887c40ec489b7735146d034ed7c5be38903e4dd8d38

Aliases

arxiv: 1602.03595 · arxiv_version: 1602.03595v1 · doi: 10.48550/arxiv.1602.03595 · pith_short_12: DREKYCY77NAA · pith_short_16: DREKYCY77NAAXJFS · pith_short_8: DREKYCY7

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/DREKYCY77NAAXJFS3CD4IDWERG \
  | 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: 1c48ac0b1ffb400ba4b2d887c40ec489b7735146d034ed7c5be38903e4dd8d38

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4591f88949ed62a0e0fb138c65f919cb4cfba14a4316b41bd29fdc88d9e78c4e",
    "cross_cats_sorted": [
      "cs.PL"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2016-02-11T01:20:29Z",
    "title_canon_sha256": "e53759b739757a94adbbf228f821149c6e69e96d0bee5b972be6f56afb637c8d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1602.03595",
    "kind": "arxiv",
    "version": 1
  }
}