Pith Number

pith:PC2L26VH

pith:2015:PC2L26VHBB2Q7C2VATOVXMCVRY

not attested not anchored not stored refs pending

Foundational Extensible Corecursion

Andrei Popescu, Dmitriy Traytel, Jasmin Christian Blanchette

arxiv:1501.05425 v1 · 2015-01-22 · 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{PC2L26VHBB2Q7C2VATOVXMCVRY}

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	2026-05-18T02:28:54.648561Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

78b4bd7aa708750f8b5504dd5bb0558e26692ea67618a61b890825ecdfd5ddb2

Aliases

arxiv: 1501.05425 · arxiv_version: 1501.05425v1 · doi: 10.48550/arxiv.1501.05425 · pith_short_12: PC2L26VHBB2Q · pith_short_16: PC2L26VHBB2Q7C2V · pith_short_8: PC2L26VH

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/PC2L26VHBB2Q7C2VATOVXMCVRY \
  | 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: 78b4bd7aa708750f8b5504dd5bb0558e26692ea67618a61b890825ecdfd5ddb2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "65208807a16d5a84b0015da9a3594394a963d3832286e6a13b237f3c99989d6b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.PL",
    "submitted_at": "2015-01-22T08:45:10Z",
    "title_canon_sha256": "1721c7f2bedbec0115667da06396071ff1398a65e7804ea2f6196fb709e8ed6d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1501.05425",
    "kind": "arxiv",
    "version": 1
  }
}