Pith Number

pith:O3E635ZR

pith:2017:O3E635ZRPJ5HPEO27VCUARVYQE

not attested not anchored not stored refs pending

Two Recursively Inseparable Problems for Probabilistic Automata

Florian Horn, Hugo Gimbert, Nathana\"el Fijalkow, Youssouf Oualhadj

arxiv:1709.03122 v1 · 2017-09-10 · 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{O3E635ZRPJ5HPEO27VCUARVYQE}

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	2026-05-18T00:35:39.309495Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

76c9edf7317a7a7791dafd454046b8812a8810559e599a82e0931b5746d98e4c

Aliases

arxiv: 1709.03122 · arxiv_version: 1709.03122v1 · doi: 10.48550/arxiv.1709.03122 · pith_short_12: O3E635ZRPJ5H · pith_short_16: O3E635ZRPJ5HPEO2 · pith_short_8: O3E635ZR

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/O3E635ZRPJ5HPEO27VCUARVYQE \
  | 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: 76c9edf7317a7a7791dafd454046b8812a8810559e599a82e0931b5746d98e4c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2d0851023e22ca85e792865bb0f2ccf15399e2ec8ab6b7d7ebbfd466672b04e8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.FL",
    "submitted_at": "2017-09-10T15:59:59Z",
    "title_canon_sha256": "55d48f7fb054bfe95bf57092079e31a12d2abae514a7ba5109e4d1b11938f060"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.03122",
    "kind": "arxiv",
    "version": 1
  }
}