Pith Number

pith:OBILJAL2

pith:2015:OBILJAL2ULUDG6CDMUTXOSAIK7

not attested not anchored not stored refs pending

A remark on the geography problem in Heegaard Floer homology

Cagatay Kutluhan, Jonathan Hanselman, Tye Lidman

arxiv:1506.05020 v2 · 2015-06-16 · 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{OBILJAL2ULUDG6CDMUTXOSAIK7}

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	2026-05-18T00:39:13.873697Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7050b4817aa2e8337843652777480857cab08bcd4be7044d796a218961888c32

Aliases

arxiv: 1506.05020 · arxiv_version: 1506.05020v2 · doi: 10.48550/arxiv.1506.05020 · pith_short_12: OBILJAL2ULUD · pith_short_16: OBILJAL2ULUDG6CD · pith_short_8: OBILJAL2

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/OBILJAL2ULUDG6CDMUTXOSAIK7 \
  | 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: 7050b4817aa2e8337843652777480857cab08bcd4be7044d796a218961888c32

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e06e2392fdde096213c180aaad768e64e50293e60284610c14ad5b482633ee22",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2015-06-16T16:15:19Z",
    "title_canon_sha256": "dcd66ccf83a3d2d57fed035a120d8abcc9e99ac6ee85c105b141faca0686f7ba"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1506.05020",
    "kind": "arxiv",
    "version": 2
  }
}