Pith Number

pith:OTCMFULK

pith:2016:OTCMFULKQDPWMEBAFFX5LYECD5

not attested not anchored not stored refs pending

On the Regular Emptiness Problem of Subzero Automata

ENS-Lyon, France), Henryk Michalewski (University of Warsaw, Matteo Mio (CNRS, Miko{\l}aj Boja\'nczyk (University of Warsaw, Poland)

arxiv:1608.03319 v1 · 2016-08-11 · cs.FL · cs.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{OTCMFULKQDPWMEBAFFX5LYECD5}

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	2026-05-18T01:09:29.194763Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

74c4c2d16a80df661020296fd5e0821f403ef22d369a2bf1ab0278b3fd6ccd98

Aliases

arxiv: 1608.03319 · arxiv_version: 1608.03319v1 · doi: 10.48550/arxiv.1608.03319 · pith_short_12: OTCMFULKQDPW · pith_short_16: OTCMFULKQDPWMEBA · pith_short_8: OTCMFULK

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/OTCMFULKQDPWMEBAFFX5LYECD5 \
  | 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: 74c4c2d16a80df661020296fd5e0821f403ef22d369a2bf1ab0278b3fd6ccd98

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "496b5cb4d981e5c6027bb9c4e56479410b42e4fd042cd5f19ad61ab3f795c673",
    "cross_cats_sorted": [
      "cs.LO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.FL",
    "submitted_at": "2016-08-11T00:25:25Z",
    "title_canon_sha256": "c54987e58a9e27ed7f256411fbee0ea543351926af2483dde92788ba961c931c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1608.03319",
    "kind": "arxiv",
    "version": 1
  }
}