Pith Number

pith:EJYLFU5I

pith:2012:EJYLFU5ID6YF7BN63D77TVSNNN

not attested not anchored not stored refs pending

Natural Factors of the Muchnik Lattice Capturing IPC

Rutger Kuyper

arxiv:1210.6538 v2 · 2012-10-24 · 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{EJYLFU5ID6YF7BN63D77TVSNNN}

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	2026-05-18T03:19:45.965450Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2270b2d3a81fb05f85bed8fff9d64d6b55d920ab819bfa731c2c31e16f2227f8

Aliases

arxiv: 1210.6538 · arxiv_version: 1210.6538v2 · doi: 10.48550/arxiv.1210.6538 · pith_short_12: EJYLFU5ID6YF · pith_short_16: EJYLFU5ID6YF7BN6 · pith_short_8: EJYLFU5I

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/EJYLFU5ID6YF7BN63D77TVSNNN \
  | 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: 2270b2d3a81fb05f85bed8fff9d64d6b55d920ab819bfa731c2c31e16f2227f8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "55922071583bfa8c6d0fecede2fa406550ee057d40c975658f0d256f7a65b47b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2012-10-24T14:11:12Z",
    "title_canon_sha256": "2d5875b5c6cc5ef4071121c8db0325dc6c71408910058f98e79655c63a8b1858"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1210.6538",
    "kind": "arxiv",
    "version": 2
  }
}