Pith Number

pith:TPX5GYT2

pith:2019:TPX5GYT2VIGRVEIABH43IRLJMR

not attested not anchored not stored refs pending

Decision problem for a class of univariate Pfaffian functions

Gabriela Jeronimo, Juan Sabia, Maria Laura Barbagallo

arxiv:1905.10882 v2 · 2019-05-26 · math.AG

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TPX5GYT2VIGRVEIABH43IRLJMR}

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	2026-05-17T23:44:53.559115Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9befd3627aaa0d1a910009f9b44569647fefbc2bf8f17d2551a8077fd5a0b3d4

Aliases

arxiv: 1905.10882 · arxiv_version: 1905.10882v2 · doi: 10.48550/arxiv.1905.10882 · pith_short_12: TPX5GYT2VIGR · pith_short_16: TPX5GYT2VIGRVEIA · pith_short_8: TPX5GYT2

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/TPX5GYT2VIGRVEIABH43IRLJMR \
  | 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: 9befd3627aaa0d1a910009f9b44569647fefbc2bf8f17d2551a8077fd5a0b3d4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d1647944afd7aacb498d47c9422a08fd8b45d1df8fb661e0f61d7668aa24f0f0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2019-05-26T21:15:55Z",
    "title_canon_sha256": "ed14a337594028c639b44f9e15b56f8fd4c5129c9cbb4946e3c3a6dd33382725"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.10882",
    "kind": "arxiv",
    "version": 2
  }
}