Pith Number

pith:GWRRQWZN

pith:2015:GWRRQWZNF62FO2275FQPAOWYDD

not attested not anchored not stored refs pending

Note on the distortion of (2,q)-torus knots

Luca Studer

arxiv:1502.01919 v1 · 2015-02-06 · 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{GWRRQWZNF62FO2275FQPAOWYDD}

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	2026-05-18T02:27:50.442447Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

35a3185b2d2fb4576b5fe960f03ad818d9f402cb57dbfc5bf1207463065e95c5

Aliases

arxiv: 1502.01919 · arxiv_version: 1502.01919v1 · doi: 10.48550/arxiv.1502.01919 · pith_short_12: GWRRQWZNF62F · pith_short_16: GWRRQWZNF62FO227 · pith_short_8: GWRRQWZN

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/GWRRQWZNF62FO2275FQPAOWYDD \
  | 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: 35a3185b2d2fb4576b5fe960f03ad818d9f402cb57dbfc5bf1207463065e95c5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c0d613c6806fd1529eb5788fd69f80feb625a9a20ad235ddca11810796fcea55",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2015-02-06T15:19:56Z",
    "title_canon_sha256": "e19737ee1e75db17d0ed681f8ad574e5b35580de835f7d6797cfb135c53f3754"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.01919",
    "kind": "arxiv",
    "version": 1
  }
}