Pith Number

pith:FIYPWPBW

pith:2018:FIYPWPBWHBTW7JYZAC2I3V6MQB

not attested not anchored not stored refs pending

Regular Transducer Expressions for Regular Transformations

Krishna Shankara Narayanan, Paul Gastin, Vrunda Dave

arxiv:1802.02094 v1 · 2018-02-05 · 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{FIYPWPBWHBTW7JYZAC2I3V6MQB}

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	2026-05-18T00:24:10.904850Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2a30fb3c3638676fa71900b48dd7cc807e275dcaeee81796b9769e90757000f8

Aliases

arxiv: 1802.02094 · arxiv_version: 1802.02094v1 · doi: 10.48550/arxiv.1802.02094 · pith_short_12: FIYPWPBWHBTW · pith_short_16: FIYPWPBWHBTW7JYZ · pith_short_8: FIYPWPBW

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/FIYPWPBWHBTW7JYZAC2I3V6MQB \
  | 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: 2a30fb3c3638676fa71900b48dd7cc807e275dcaeee81796b9769e90757000f8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "02a6ed577f4c3999d9f1caa1ec1706f309bd0b10cd6947391821559e0022c6cb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.FL",
    "submitted_at": "2018-02-05T16:55:48Z",
    "title_canon_sha256": "7f3cf013a948cd491c3870f2897355ec92ed726c779c551a87d13bd48a1efbc1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.02094",
    "kind": "arxiv",
    "version": 1
  }
}