Pith Number

pith:QIB5O7JZ

pith:2014:QIB5O7JZKFKD4FHWA3DXGXOFY6

not attested not anchored not stored refs pending

Saturated free algebras revisited

Anand Pillay, Rizos Sklinos

arxiv:1409.8604 v1 · 2014-09-30 · 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{QIB5O7JZKFKD4FHWA3DXGXOFY6}

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	2026-05-18T02:41:24.117134Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8203d77d3951543e14f606c7735dc5c78c567891b81392692605d83f4849d86f

Aliases

arxiv: 1409.8604 · arxiv_version: 1409.8604v1 · doi: 10.48550/arxiv.1409.8604 · pith_short_12: QIB5O7JZKFKD · pith_short_16: QIB5O7JZKFKD4FHW · pith_short_8: QIB5O7JZ

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/QIB5O7JZKFKD4FHWA3DXGXOFY6 \
  | 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: 8203d77d3951543e14f606c7735dc5c78c567891b81392692605d83f4849d86f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3ff69165455dc33e195abacecf6340020f4816726ab202c71d8426b44a5efd89",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2014-09-30T15:47:36Z",
    "title_canon_sha256": "704c350546591a412526a89011e367837160a2b1c1560a9e41fd9337a2c49de2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1409.8604",
    "kind": "arxiv",
    "version": 1
  }
}