Pith Number

pith:A7VBG2GQ

pith:2018:A7VBG2GQ3APVJ2FRWVS7S5YOLM

not attested not anchored not stored refs pending

Syntactic characterizations of classes of first-order structures in mathematical fuzzy logic

Carles Noguera, Guillermo Badia, Pilar Dellunde, Vicent Costa

arxiv:1901.01827 v1 · 2018-12-16 · math.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{A7VBG2GQ3APVJ2FRWVS7S5YOLM}

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	2026-05-17T23:56:51.159237Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

07ea1368d0d81f54e8b1b565f9770e5b32dda311a4c4eefcfcdfc05c4492e69a

Aliases

arxiv: 1901.01827 · arxiv_version: 1901.01827v1 · doi: 10.48550/arxiv.1901.01827 · pith_short_12: A7VBG2GQ3APV · pith_short_16: A7VBG2GQ3APVJ2FR · pith_short_8: A7VBG2GQ

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/A7VBG2GQ3APVJ2FRWVS7S5YOLM \
  | 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: 07ea1368d0d81f54e8b1b565f9770e5b32dda311a4c4eefcfcdfc05c4492e69a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cd9dd9cec6c60a83257ebd4913eaa6be6f5b26bad9db75455b921b9190845904",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2018-12-16T14:48:12Z",
    "title_canon_sha256": "2c6548babe607dc486af670e6d96b143290406ecb1988512a6c02286ee9fb8a3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.01827",
    "kind": "arxiv",
    "version": 1
  }
}