Pith Number

pith:GDYEQ5WL

pith:2018:GDYEQ5WLJGWHNENQXCFX27Q2BB

not attested not anchored not stored refs pending

Algebraic Semantics for Nelson's Logic S

Jo\~ao Marcos, Matthew Spinks, Thiago Nascimento, Umberto Rivieccio

arxiv:1803.10847 v3 · 2018-03-28 · 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{GDYEQ5WLJGWHNENQXCFX27Q2BB}

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	2026-05-18T00:13:44.512778Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

30f04876cb49ac7691b0b88b7d7e1a0872365963b68fc29d9a29affae883a6d7

Aliases

arxiv: 1803.10847 · arxiv_version: 1803.10847v3 · doi: 10.48550/arxiv.1803.10847 · pith_short_12: GDYEQ5WLJGWH · pith_short_16: GDYEQ5WLJGWHNENQ · pith_short_8: GDYEQ5WL

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/GDYEQ5WLJGWHNENQXCFX27Q2BB \
  | 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: 30f04876cb49ac7691b0b88b7d7e1a0872365963b68fc29d9a29affae883a6d7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a06e57b6a163e2b85e2e7f36cbf7dd8a100c4fac5994a6876feee50f52f55d09",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2018-03-28T20:49:26Z",
    "title_canon_sha256": "713c5059a19e586aa8249fec8be8043ee57b9dff1e23aeb4319ce0d45212104a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.10847",
    "kind": "arxiv",
    "version": 3
  }
}