Pith Number

pith:2O5DRWFP

pith:2014:2O5DRWFPJHCI7MU6553A5VYCYI

not attested not anchored not stored refs pending

Terminal semantics for codata types in intensional Martin-L\"of type theory

Benedikt Ahrens, R\'egis Spadotti

arxiv:1401.1053 v2 · 2014-01-06 · cs.LO · math.CT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2O5DRWFPJHCI7MU6553A5VYCYI}

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	2026-05-18T02:53:40.220911Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d3ba38d8af49c48fb29eef760ed702c2151549f149b4e02c351530d684be505b

Aliases

arxiv: 1401.1053 · arxiv_version: 1401.1053v2 · doi: 10.48550/arxiv.1401.1053 · pith_short_12: 2O5DRWFPJHCI · pith_short_16: 2O5DRWFPJHCI7MU6 · pith_short_8: 2O5DRWFP

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/2O5DRWFPJHCI7MU6553A5VYCYI \
  | 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: d3ba38d8af49c48fb29eef760ed702c2151549f149b4e02c351530d684be505b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c318e357e7de884f6d9268b932176823cec4d0298409417ef89398b876093a99",
    "cross_cats_sorted": [
      "math.CT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2014-01-06T11:58:48Z",
    "title_canon_sha256": "3bdcaac8a44465eaf194ae710f1841a9f461f946f0609838f0f982927f8578a8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1401.1053",
    "kind": "arxiv",
    "version": 2
  }
}