Pith Number

pith:VCONMKP3

pith:2016:VCONMKP3GRDCBGU32U3IHME6LW

not attested not anchored not stored refs pending

Ribbon-clasp surface-links and normal forms of singular surface-links

Kengo Kawamura, Seiichi Kamada

arxiv:1602.07855 v1 · 2016-02-25 · 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{VCONMKP3GRDCBGU32U3IHME6LW}

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	2026-05-18T01:19:58.417505Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a89cd629fb3446209a9bd53683b09e5d91c40851366e2ecf9667639e69c49535

Aliases

arxiv: 1602.07855 · arxiv_version: 1602.07855v1 · doi: 10.48550/arxiv.1602.07855 · pith_short_12: VCONMKP3GRDC · pith_short_16: VCONMKP3GRDCBGU3 · pith_short_8: VCONMKP3

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/VCONMKP3GRDCBGU32U3IHME6LW \
  | 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: a89cd629fb3446209a9bd53683b09e5d91c40851366e2ecf9667639e69c49535

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6b38b1ef38213da331873f0eb95b1e0be953943131602998ea8bdb1f6874fe56",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2016-02-25T09:19:43Z",
    "title_canon_sha256": "4458eefe7f0c23add8704210148ebc2646226e788b61654bc66342bd6b85a80f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1602.07855",
    "kind": "arxiv",
    "version": 1
  }
}