Pith Number

pith:D2KN5JUN

pith:2019:D2KN5JUNJMT5ILKLKBD5HOUXW4

not attested not anchored not stored refs pending

Floer homotopy theory, revisited

Ralph L. Cohen

arxiv:1901.08694 v1 · 2019-01-24 · math.AT · math.GT · math.SG

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{D2KN5JUNJMT5ILKLKBD5HOUXW4}

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	2026-05-17T23:55:33.391961Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1e94dea68d4b27d42d4b5047d3ba97b728d7cc8a6f12238009588427fc05f797

Aliases

arxiv: 1901.08694 · arxiv_version: 1901.08694v1 · doi: 10.48550/arxiv.1901.08694 · pith_short_12: D2KN5JUNJMT5 · pith_short_16: D2KN5JUNJMT5ILKL · pith_short_8: D2KN5JUN

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/D2KN5JUNJMT5ILKLKBD5HOUXW4 \
  | 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: 1e94dea68d4b27d42d4b5047d3ba97b728d7cc8a6f12238009588427fc05f797

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fa88554ac676641648865c5a5981b7bad659eb7404837afe7eafd018912380b4",
    "cross_cats_sorted": [
      "math.GT",
      "math.SG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2019-01-24T23:48:42Z",
    "title_canon_sha256": "9a617b8c8da76d5f302f53aa596ac0cd15af34d083d6fc4ee83c039d7c6e9361"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.08694",
    "kind": "arxiv",
    "version": 1
  }
}