Pith Number

pith:O647RWXQ

pith:2018:O647RWXQDKR4BSNHPKNZMBLQJ5

not attested not anchored not stored refs pending

Algebraic cycles and triple K3 burgers

Robert Laterveer

arxiv:1809.10214 v1 · 2018-09-26 · math.AG

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{O647RWXQDKR4BSNHPKNZMBLQJ5}

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	2026-05-18T00:04:38.827846Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

77b9f8daf01aa3c0c9a77a9b9605704f59915de2ec98b799a23296dac486c4cf

Aliases

arxiv: 1809.10214 · arxiv_version: 1809.10214v1 · doi: 10.48550/arxiv.1809.10214 · pith_short_12: O647RWXQDKR4 · pith_short_16: O647RWXQDKR4BSNH · pith_short_8: O647RWXQ

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/O647RWXQDKR4BSNHPKNZMBLQJ5 \
  | 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: 77b9f8daf01aa3c0c9a77a9b9605704f59915de2ec98b799a23296dac486c4cf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e31f36093991cd1d262df03e5851da34a15b7b982dfb652f28da49f88ab81ac1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2018-09-26T19:51:55Z",
    "title_canon_sha256": "b0cfc1b0fd2e99aff22ef420bfc4c134c473c6a143164978f6bb80ba6ce9e64e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.10214",
    "kind": "arxiv",
    "version": 1
  }
}