Pith Number

pith:TQ5BUEVM

pith:2011:TQ5BUEVMXRCFQECJWGBAHY2RVE

not attested not anchored not stored refs pending

Sound and complete axiomatizations of coalgebraic language equivalence

Alexandra Silva, Marcello M. Bonsangue, Stefan Milius

arxiv:1104.2803 v6 · 2011-04-14 · 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{TQ5BUEVMXRCFQECJWGBAHY2RVE}

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	2026-05-18T00:48:33.426677Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9c3a1a12acbc44581049b18203e351a915d9cd2aa97615571f4102044f0bf3b3

Aliases

arxiv: 1104.2803 · arxiv_version: 1104.2803v6 · doi: 10.48550/arxiv.1104.2803 · pith_short_12: TQ5BUEVMXRCF · pith_short_16: TQ5BUEVMXRCFQECJ · pith_short_8: TQ5BUEVM

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/TQ5BUEVMXRCFQECJWGBAHY2RVE \
  | 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: 9c3a1a12acbc44581049b18203e351a915d9cd2aa97615571f4102044f0bf3b3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5b98a9a5f8609d40182e23293029523b732f80fcae2ad34ff7ef6794ceac5319",
    "cross_cats_sorted": [
      "math.CT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2011-04-14T15:31:07Z",
    "title_canon_sha256": "c1f4fda8525b3a4fe1c7abab4f19f8f8de911fd7449a684ff368419287dd36bf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1104.2803",
    "kind": "arxiv",
    "version": 6
  }
}