Pith Number

pith:RMU5ZARJ

pith:2012:RMU5ZARJHJ5JTWPCM5YQPYWIO6

not attested not anchored not stored refs pending

Structured general corecursion and coinductive graphs [extended abstract]

Tarmo Uustalu

arxiv:1202.3502 v1 · 2012-02-16 · 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{RMU5ZARJHJ5JTWPCM5YQPYWIO6}

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	2026-05-18T04:02:12.965188Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8b29dc82293a7a99d9e2677107e2c8779414cfeec04bd167b3577b126fa40c3a

Aliases

arxiv: 1202.3502 · arxiv_version: 1202.3502v1 · doi: 10.48550/arxiv.1202.3502 · pith_short_12: RMU5ZARJHJ5J · pith_short_16: RMU5ZARJHJ5JTWPC · pith_short_8: RMU5ZARJ

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/RMU5ZARJHJ5JTWPCM5YQPYWIO6 \
  | 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: 8b29dc82293a7a99d9e2677107e2c8779414cfeec04bd167b3577b126fa40c3a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "45556c1d6af03bc104c7f173552569ba598986b4f961d57495a10a9f481d4e50",
    "cross_cats_sorted": [
      "cs.PL"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2012-02-16T02:41:50Z",
    "title_canon_sha256": "3e06d6e594df3d0a66f69fcc6c41cf367b3f77453601c764a2880ee7a994c588"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1202.3502",
    "kind": "arxiv",
    "version": 1
  }
}