Pith Number

pith:F7FOIBEP

pith:2012:F7FOIBEPURN2HYG7VQ7O6H2CHS

not attested not anchored not stored refs pending

A Calculus of Looping Sequences with Local Rules

Angelo Troina (Dipartimento di Informatica, Livio Bioglio (Dipartimento di Informatica, Mariangiola Dezani-Ciancaglini (Dipartimento di Informatica, Paola Giannini (Dipartimento di Informatica, Universit\`a di Torino)

arxiv:1207.7147 v1 · 2012-07-31 · cs.CE · cs.FL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{F7FOIBEPURN2HYG7VQ7O6H2CHS}

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	2026-05-18T03:49:46.626061Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2fcae4048fa45ba3e0dfac3eef1f423ca43320b930294a69c64f9fb67bd9e713

Aliases

arxiv: 1207.7147 · arxiv_version: 1207.7147v1 · doi: 10.48550/arxiv.1207.7147 · pith_short_12: F7FOIBEPURN2 · pith_short_16: F7FOIBEPURN2HYG7 · pith_short_8: F7FOIBEP

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/F7FOIBEPURN2HYG7VQ7O6H2CHS \
  | 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: 2fcae4048fa45ba3e0dfac3eef1f423ca43320b930294a69c64f9fb67bd9e713

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f909aa1bca243e0765edd8fac491000d87edc606eb8587c003ce7a5c07e7c104",
    "cross_cats_sorted": [
      "cs.FL"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CE",
    "submitted_at": "2012-07-31T02:06:26Z",
    "title_canon_sha256": "c63c76560718ac2371d970c3b7c60af46ecc05586711410bead052cb12ca50a6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.7147",
    "kind": "arxiv",
    "version": 1
  }
}