Pith Number

pith:7NXLJKKK

pith:2018:7NXLJKKKPZAQVMUKCCH56BN63Y

not attested not anchored not stored refs pending

Axiomatizing provable $n$-provability

Evgeny Kolmakov, Lev Beklemishev

arxiv:1805.00381 v1 · 2018-05-01 · math.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{7NXLJKKKPZAQVMUKCCH56BN63Y}

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	2026-05-17T23:40:41.819371Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fb6eb4a94a7e410ab28a108fdf05bede3104e3ee54a6226155cc43915251958d

Aliases

arxiv: 1805.00381 · arxiv_version: 1805.00381v1 · doi: 10.48550/arxiv.1805.00381 · pith_short_12: 7NXLJKKKPZAQ · pith_short_16: 7NXLJKKKPZAQVMUK · pith_short_8: 7NXLJKKK

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/7NXLJKKKPZAQVMUKCCH56BN63Y \
  | 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: fb6eb4a94a7e410ab28a108fdf05bede3104e3ee54a6226155cc43915251958d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8a4fd3a686e6d3507916b480bf87ba91e1b661ee0a8104d58703fd550d9a02b2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2018-05-01T15:04:02Z",
    "title_canon_sha256": "9b23c21143fee3c56627dff9b496c5708f19455e25e66e5cfb041a40bb267947"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.00381",
    "kind": "arxiv",
    "version": 1
  }
}