Pith Number

pith:3ZNY3FOI

pith:2017:3ZNY3FOIIGZVOL3OPD5OILONTE

not attested not anchored not stored refs pending

A new approach to the symplectic isotopy problem

Laura Starkston

arxiv:1709.02544 v2 · 2017-09-08 · math.SG · 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{3ZNY3FOIIGZVOL3OPD5OILONTE}

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	2026-05-17T23:40:36.717417Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

de5b8d95c841b3572f6e78fae42dcd993274ffd09ee6676bf29438112f4bdb63

Aliases

arxiv: 1709.02544 · arxiv_version: 1709.02544v2 · doi: 10.48550/arxiv.1709.02544 · pith_short_12: 3ZNY3FOIIGZV · pith_short_16: 3ZNY3FOIIGZVOL3O · pith_short_8: 3ZNY3FOI

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/3ZNY3FOIIGZVOL3OPD5OILONTE \
  | 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: de5b8d95c841b3572f6e78fae42dcd993274ffd09ee6676bf29438112f4bdb63

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "737bd41cf04bf4f3f6c0230180cf6bbcc12784aa90b07267ddc2340a30f864f6",
    "cross_cats_sorted": [
      "math.GT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.SG",
    "submitted_at": "2017-09-08T05:34:47Z",
    "title_canon_sha256": "c7b20c9da22f1311c7ca12058bd9f4174d93ce65851a098399a281dc5ec8d028"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.02544",
    "kind": "arxiv",
    "version": 2
  }
}