Pith Number

pith:DF7EVC3D

pith:2019:DF7EVC3DL76A7CRMIBKWEWZJP6

not attested not anchored not stored refs pending

Heegaard Floer homology and splicing homology spheres

Cagri Karakurt, Eamonn Tweedy, Tye Lidman

arxiv:1904.03777 v2 · 2019-04-07 · 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{DF7EVC3DL76A7CRMIBKWEWZJP6}

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	2026-05-17T23:39:30.294381Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

197e4a8b635ffc0f8a2c4055625b297fb4a46348444730ec91beae8acb6df6ed

Aliases

arxiv: 1904.03777 · arxiv_version: 1904.03777v2 · doi: 10.48550/arxiv.1904.03777 · pith_short_12: DF7EVC3DL76A · pith_short_16: DF7EVC3DL76A7CRM · pith_short_8: DF7EVC3D

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/DF7EVC3DL76A7CRMIBKWEWZJP6 \
  | 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: 197e4a8b635ffc0f8a2c4055625b297fb4a46348444730ec91beae8acb6df6ed

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ad01c43c232bd81aa7a4b314b07d07e92f5e619c6e3a2f367d42e31712a73e26",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2019-04-07T23:47:32Z",
    "title_canon_sha256": "07d927ad612fecf36e9810ca1ce0ba90f59dc2c4d756c1585c01db2d4cf1c777"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.03777",
    "kind": "arxiv",
    "version": 2
  }
}