pith. sign in
Pith Number

pith:Z4PCWGJL

pith:2018:Z4PCWGJLR6PCTXBQN7CGYFCF25
not attested not anchored not stored refs pending

On a discriminant knot group problem of Brieskorn

Michael L\"onne

arxiv:1801.04626 v1 · 2018-01-15 · math.AG

Add to your LaTeX paper
\usepackage{pith}
\pithnumber{Z4PCWGJLR6PCTXBQN7CGYFCF25}

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 2026-05-18T00:26:03.797588Z
Builder pith-number-builder-2026-05-17-v1
Signature Pith Ed25519 (pith-v1-2026-05) · public key
Schema pith-number/v1.0

Canonical hash

cf1e2b192b8f9e29dc306fc46c1445d764e805ed74896d8aa3f8fc11f17d61bf

Aliases

arxiv: 1801.04626 · arxiv_version: 1801.04626v1 · doi: 10.48550/arxiv.1801.04626 · pith_short_12: Z4PCWGJLR6PC · pith_short_16: Z4PCWGJLR6PCTXBQ · pith_short_8: Z4PCWGJL
Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/Z4PCWGJLR6PCTXBQN7CGYFCF25 \
  | 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: cf1e2b192b8f9e29dc306fc46c1445d764e805ed74896d8aa3f8fc11f17d61bf
Canonical record JSON
{
  "metadata": {
    "abstract_canon_sha256": "9a3d27659c959bca2381c56fb72eb184373d7cda91b5c94286df71fc04bbd30a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2018-01-15T00:31:33Z",
    "title_canon_sha256": "44e1f57e7d46fa9fde02fc875f3fa15b6eca1d62cb5529a7c865502ec532a2ac"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.04626",
    "kind": "arxiv",
    "version": 1
  }
}