Pith Number

pith:DKCSO47Y

pith:2020:DKCSO47YVE2675SZMDFK6VC3QE

not attested not anchored not stored refs pending

Terminal Coalgebras and Non-wellfounded Sets in Homotopy Type Theory

Elisabeth Stenholm, H{\aa}kon Robbestad Gylterud, Niccol\`o Veltri

arxiv:2001.06696 v7 · 2020-01-18 · math.LO · cs.LO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DKCSO47YVE2675SZMDFK6VC3QE}

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	2026-06-09T01:05:01.933985Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1a852773f8a935eff65960caaf545b8110315057e3a5c3872fea2de64d407309

Aliases

arxiv: 2001.06696 · arxiv_version: 2001.06696v7 · doi: 10.48550/arxiv.2001.06696 · pith_short_12: DKCSO47YVE26 · pith_short_16: DKCSO47YVE2675SZ · pith_short_8: DKCSO47Y

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/DKCSO47YVE2675SZMDFK6VC3QE \
  | 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: 1a852773f8a935eff65960caaf545b8110315057e3a5c3872fea2de64d407309

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bf7153a768ddfbb25ace7a4666b622c215c4ae8a3101aa75a9bfa1fa19c3bc34",
    "cross_cats_sorted": [
      "cs.LO"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2020-01-18T16:16:06Z",
    "title_canon_sha256": "c2a1ac048664c737639eca336e769c4e25d287b6a7f47c67eba7e5a1ab73c439"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2001.06696",
    "kind": "arxiv",
    "version": 7
  }
}