Pith Number

pith:LRTBRKF4

pith:2018:LRTBRKF4OKRG2LH6JYSXWC6ZUW

not attested not anchored not stored refs pending

When is a real generic over $L$?

Fabiana Castiblanco, Ralf Schindler

arxiv:1809.03269 v1 · 2018-09-10 · 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{LRTBRKF4OKRG2LH6JYSXWC6ZUW}

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	2026-05-18T00:06:09.413489Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5c6618a8bc72a26d2cfe4e257b0bd9a59a76cc22b641899b26d6bae729cc3cd9

Aliases

arxiv: 1809.03269 · arxiv_version: 1809.03269v1 · doi: 10.48550/arxiv.1809.03269 · pith_short_12: LRTBRKF4OKRG · pith_short_16: LRTBRKF4OKRG2LH6 · pith_short_8: LRTBRKF4

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/LRTBRKF4OKRG2LH6JYSXWC6ZUW \
  | 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: 5c6618a8bc72a26d2cfe4e257b0bd9a59a76cc22b641899b26d6bae729cc3cd9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "07a2142241932c75ab1a90c78b2bf5da26ecb5faca7ad286f401d0cfc8303e56",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2018-09-10T12:29:04Z",
    "title_canon_sha256": "414ff8c9a80634a0c5ff18aa95a9de03c59b9acfef777d4d4242c05e0c8967d0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.03269",
    "kind": "arxiv",
    "version": 1
  }
}