Pith Number

pith:TFGDQ77N

pith:2025:TFGDQ77NHBGLPYCQPDM7K44KN7

not attested not anchored not stored refs pending

The memory of $\omega$-regular and BC($\Sigma_2^0$) objectives

Antonio Casares, Pierre Ohlmann

arxiv:2502.05840 v3 · 2025-02-09 · cs.LO · cs.FL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TFGDQ77NHBGLPYCQPDM7K44KN7}

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	2026-06-02T02:04:46.357469Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

994c387fed384cb7e05078d9f5738a6fe12dcbaea77ffb86bc3a6f1682deddec

Aliases

arxiv: 2502.05840 · arxiv_version: 2502.05840v3 · doi: 10.48550/arxiv.2502.05840 · pith_short_12: TFGDQ77NHBGL · pith_short_16: TFGDQ77NHBGLPYCQ · pith_short_8: TFGDQ77N

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/TFGDQ77NHBGLPYCQPDM7K44KN7 \
  | 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: 994c387fed384cb7e05078d9f5738a6fe12dcbaea77ffb86bc3a6f1682deddec

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "654cebe9384aa1273bebc981452d712d9e6844e4e1a0c8eb7f00ac63a824e7ef",
    "cross_cats_sorted": [
      "cs.FL"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2025-02-09T10:23:17Z",
    "title_canon_sha256": "4cac1e7920e9bc6e34c7231713c9162d0d304c28506fb28f00957d552c46268b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2502.05840",
    "kind": "arxiv",
    "version": 3
  }
}