Pith Number

pith:USYS6POD

pith:2018:USYS6PODQZPDJWIG24XZBXFTUG

not attested not anchored not stored refs pending

Equational Axiomatization of Algebras with Structure

Henning Urbat, Stefan Milius

arxiv:1812.02016 v2 · 2018-12-05 · 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{USYS6PODQZPDJWIG24XZBXFTUG}

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	2026-05-17T23:54:53.335362Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a4b12f3dc3865e34d906d72f90dcb3a18cd57d51421ae427ba226cfe614a457b

Aliases

arxiv: 1812.02016 · arxiv_version: 1812.02016v2 · doi: 10.48550/arxiv.1812.02016 · pith_short_12: USYS6PODQZPD · pith_short_16: USYS6PODQZPDJWIG · pith_short_8: USYS6POD

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/USYS6PODQZPDJWIG24XZBXFTUG \
  | 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: a4b12f3dc3865e34d906d72f90dcb3a18cd57d51421ae427ba226cfe614a457b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7bda080ec010fa154deb6ac694d6a227705ce0fc6d41eeebdfa385ed72030138",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2018-12-05T14:30:54Z",
    "title_canon_sha256": "72a081d9d59a726391921365827a87d6baf550bb8eff1c8d3c0e365ea63fdabf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.02016",
    "kind": "arxiv",
    "version": 2
  }
}