Pith Number

pith:DC5HXD4T

pith:2021:DC5HXD4T5CDPZJHZYOWUJ7XPF2

not attested not anchored not stored refs pending

Valuation semantics for first-order logics of evidence and truth (and some related logics)

A. Rodrigues, H. Antunes, M. E. Coniglio, W. Carnielli

arxiv:2106.09850 v1 · 2021-06-18 · 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{DC5HXD4T5CDPZJHZYOWUJ7XPF2}

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	2026-07-05T02:50:31.205772Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

18ba7b8f93e886fca4f9c3ad44feef2ea97f3ac5898050404fc9bd411c1983d1

Aliases

arxiv: 2106.09850 · arxiv_version: 2106.09850v1 · doi: 10.48550/arxiv.2106.09850 · pith_short_12: DC5HXD4T5CDP · pith_short_16: DC5HXD4T5CDPZJHZ · pith_short_8: DC5HXD4T

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/DC5HXD4T5CDPZJHZYOWUJ7XPF2 \
  | 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: 18ba7b8f93e886fca4f9c3ad44feef2ea97f3ac5898050404fc9bd411c1983d1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bbfb53f06780909e5c93e653af3ab2689401b24715aaaa600c4eb92eff6fbf72",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2021-06-18T00:07:54Z",
    "title_canon_sha256": "28d6e740f0f4a844bcb85fabec2d08c08837ace2bb4d4ecb7ae3076c93675c94"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2106.09850",
    "kind": "arxiv",
    "version": 1
  }
}