Pith Number

pith:NY3WUZT6

pith:2020:NY3WUZT6AJGOH2APLZUZNSEQIO

not attested not anchored not stored refs pending

Chern-Simons functional, singular instantons, and the four-dimensional clasp number

Aliakbar Daemi, Christopher Scaduto

arxiv:2007.13160 v2 · 2020-07-26 · 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{NY3WUZT6AJGOH2APLZUZNSEQIO}

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	2026-07-05T09:03:44.831211Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6e376a667e024ce3e80f5e6996c89043b0d915da4cf2b8c38f9f66ac51de430d

Aliases

arxiv: 2007.13160 · arxiv_version: 2007.13160v2 · doi: 10.48550/arxiv.2007.13160 · pith_short_12: NY3WUZT6AJGO · pith_short_16: NY3WUZT6AJGOH2AP · pith_short_8: NY3WUZT6

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/NY3WUZT6AJGOH2APLZUZNSEQIO \
  | 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: 6e376a667e024ce3e80f5e6996c89043b0d915da4cf2b8c38f9f66ac51de430d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "714fb2201f182d3b572655c5d172b1ccdb354468933620c5efffd30f214a57ef",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2020-07-26T16:05:13Z",
    "title_canon_sha256": "a20679ee33804729d25a05b3d85500ca16bbd69f9821e2f90b30f6a3b3d5776e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2007.13160",
    "kind": "arxiv",
    "version": 2
  }
}