Pith Number

pith:QWVLPAA2

pith:2019:QWVLPAA2DH446TAYBUARY4EXAC

not attested not anchored not stored refs pending

Concordance to links with an unknotted component

Christopher William Davis, Junghwan Park

arxiv:1908.02396 v1 · 2019-08-06 · 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{QWVLPAA2DH446TAYBUARY4EXAC}

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	2026-07-04T23:52:08.395113Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

85aab7801a19f9cf4c180d011c709700bcadb9992611ccbece61db9db407b2b5

Aliases

arxiv: 1908.02396 · arxiv_version: 1908.02396v1 · doi: 10.48550/arxiv.1908.02396 · pith_short_12: QWVLPAA2DH44 · pith_short_16: QWVLPAA2DH446TAY · pith_short_8: QWVLPAA2

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/QWVLPAA2DH446TAYBUARY4EXAC \
  | 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: 85aab7801a19f9cf4c180d011c709700bcadb9992611ccbece61db9db407b2b5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c5f31112c573c59f916a879eb56e977da70c831c282f5a29dba8e210a90e7be1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2019-08-06T23:26:12Z",
    "title_canon_sha256": "c710c05df9e41d7cfa5ab82e68906494a5ad311cb4ee2849066b3939d857aca4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.02396",
    "kind": "arxiv",
    "version": 1
  }
}