Pith Number

pith:UET62GIZ

pith:2017:UET62GIZ4CFTYQASKHX7I4MPDI

not attested not anchored not stored refs pending

On the complexity of torus knot recognition

John A. Baldwin, Steven Sivek

arxiv:1706.04424 v2 · 2017-06-14 · 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{UET62GIZ4CFTYQASKHX7I4MPDI}

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	2026-05-17T23:51:54.859837Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a127ed1919e08b3c401251eff4718f1a2bb0ede3c5178819b5e6328d7402852f

Aliases

arxiv: 1706.04424 · arxiv_version: 1706.04424v2 · doi: 10.48550/arxiv.1706.04424 · pith_short_12: UET62GIZ4CFT · pith_short_16: UET62GIZ4CFTYQAS · pith_short_8: UET62GIZ

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/UET62GIZ4CFTYQASKHX7I4MPDI \
  | 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: a127ed1919e08b3c401251eff4718f1a2bb0ede3c5178819b5e6328d7402852f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0fc2ab48bb0facee58859a6de9dea353db787f63792ce78c9e0bce243977e11c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2017-06-14T12:02:27Z",
    "title_canon_sha256": "74737c6937520a2c4b89d23030799b885e31a63991a180bc90286deb9ac2f5fd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1706.04424",
    "kind": "arxiv",
    "version": 2
  }
}