Pith Number

pith:ARSUPK5A

pith:2016:ARSUPK5A6XWWXDAEOWUCWQUDOV

not attested not anchored not stored refs pending

Kobayashi compressibility

George Barmpalias, Rodney G. Downey

arxiv:1608.00692 v2 · 2016-08-02 · cs.CC · 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{ARSUPK5A6XWWXDAEOWUCWQUDOV}

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	2026-05-18T00:49:58.732140Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

046547aba0f5ed6b8c0475a82b42837577436a7e2ed5f07227f5721a1875d34e

Aliases

arxiv: 1608.00692 · arxiv_version: 1608.00692v2 · doi: 10.48550/arxiv.1608.00692 · pith_short_12: ARSUPK5A6XWW · pith_short_16: ARSUPK5A6XWWXDAE · pith_short_8: ARSUPK5A

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/ARSUPK5A6XWWXDAEOWUCWQUDOV \
  | 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: 046547aba0f5ed6b8c0475a82b42837577436a7e2ed5f07227f5721a1875d34e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "abf0acf46b7950bed97317b497baed1698f545571af1cd0251701c8972c8eed1",
    "cross_cats_sorted": [
      "cs.LO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2016-08-02T04:12:08Z",
    "title_canon_sha256": "1cb3e213950d57e6980deec822a91d965be34e63f4c2518838e405210aa873c3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1608.00692",
    "kind": "arxiv",
    "version": 2
  }
}