Pith Number

pith:DMVRUYBK

pith:2025:DMVRUYBKVMP74DHQUMHEOKOAQU

not attested not anchored not stored refs pending

Projective curves and weak second-order logic

Alessandro Berarducci, Francesco Gallinaro

arxiv:2503.10473 v4 · 2025-03-13 · 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{DMVRUYBKVMP74DHQUMHEOKOAQU}

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	2026-06-23T03:13:44.742106Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1b2b1a602aab1ffe0cf0a30e4729c08529b97312a46f2de7a847e41100b12f25

Aliases

arxiv: 2503.10473 · arxiv_version: 2503.10473v4 · doi: 10.48550/arxiv.2503.10473 · pith_short_12: DMVRUYBKVMP7 · pith_short_16: DMVRUYBKVMP74DHQ · pith_short_8: DMVRUYBK

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/DMVRUYBKVMP74DHQUMHEOKOAQU \
  | 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: 1b2b1a602aab1ffe0cf0a30e4729c08529b97312a46f2de7a847e41100b12f25

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6d5b36b439ce43dee6efd8c584ae32c0e8547709c945f7315deaa0acd65a542a",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2025-03-13T15:44:53Z",
    "title_canon_sha256": "a7a66b597152e5ab27155b96ded870c48b85e1da7c37efa3d829ae66045b4f88"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2503.10473",
    "kind": "arxiv",
    "version": 4
  }
}