Pith Number

pith:H57FHPDH

pith:2018:H57FHPDHDTNXWR3A7GVMEIGAFA

not attested not anchored not stored refs pending

On the knot quandle of a fibered knot, finiteness and equivalence of knot quandles

Ayumu Inoue

arxiv:1807.08977 v1 · 2018-07-24 · math.GT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{H57FHPDHDTNXWR3A7GVMEIGAFA}

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	2026-05-18T00:09:57.184310Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3f7e53bc671cdb7b4760f9aac220c0280f8aae7eccba6e15c7c0e262335ea7ba

Aliases

arxiv: 1807.08977 · arxiv_version: 1807.08977v1 · doi: 10.48550/arxiv.1807.08977 · pith_short_12: H57FHPDHDTNX · pith_short_16: H57FHPDHDTNXWR3A · pith_short_8: H57FHPDH

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/H57FHPDHDTNXWR3A7GVMEIGAFA \
  | 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: 3f7e53bc671cdb7b4760f9aac220c0280f8aae7eccba6e15c7c0e262335ea7ba

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d122a763bc69e7b8ae68abc8a53259f921cbdc4c6900af06412cdb4d5a84d313",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2018-07-24T09:12:40Z",
    "title_canon_sha256": "6458f7acdb34b0f7419118adfd2df80fa651faa869339f228fc0c2e5e96bfd6c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.08977",
    "kind": "arxiv",
    "version": 1
  }
}