Pith Number

pith:TDDX5IAA

pith:2017:TDDX5IAAARPYPWIUCN6HSDJGRS

not attested not anchored not stored refs pending

Computational Higher Type Theory III: Univalent Universes and Exact Equality

Carlo Angiuli, Kuen-Bang Hou, Robert Harper

arxiv:1712.01800 v1 · 2017-12-05 · 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{TDDX5IAAARPYPWIUCN6HSDJGRS}

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	2026-05-18T00:28:47.496792Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

98c77ea000045f87d914137c790d268c8b093d4a749327a880c5ea5e1a8c77ac

Aliases

arxiv: 1712.01800 · arxiv_version: 1712.01800v1 · doi: 10.48550/arxiv.1712.01800 · pith_short_12: TDDX5IAAARPY · pith_short_16: TDDX5IAAARPYPWIU · pith_short_8: TDDX5IAA

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/TDDX5IAAARPYPWIUCN6HSDJGRS \
  | 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: 98c77ea000045f87d914137c790d268c8b093d4a749327a880c5ea5e1a8c77ac

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b324436756cf49a65a616ccd84202085cc26bf7852056e60527e19e6f77a065e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2017-12-05T18:26:34Z",
    "title_canon_sha256": "48f7d085673ec8cb979021b681419a8c5ec6283f3bf43d98a10794690eeb9c54"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1712.01800",
    "kind": "arxiv",
    "version": 1
  }
}