Pith Number

pith:2VA6FA4N

pith:2023:2VA6FA4NEJOW3VA5Y5RINMCUCR

not attested not anchored not stored refs pending

The cohomological dimension of the terms of the Johnson filtration

Daniel Minahan

arxiv:2301.06175 v2 · 2023-01-15 · math.GT · math.GN

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2VA6FA4NEJOW3VA5Y5RINMCUCR}

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	2026-07-05T07:14:08.811960Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d541e2838d225d6dd41dc76286b0541467fcd2e3881d4fae2ae6820a2859f352

Aliases

arxiv: 2301.06175 · arxiv_version: 2301.06175v2 · doi: 10.48550/arxiv.2301.06175 · pith_short_12: 2VA6FA4NEJOW · pith_short_16: 2VA6FA4NEJOW3VA5 · pith_short_8: 2VA6FA4N

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/2VA6FA4NEJOW3VA5Y5RINMCUCR \
  | 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: d541e2838d225d6dd41dc76286b0541467fcd2e3881d4fae2ae6820a2859f352

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4aa3e84f9fff9c0944852db73b30ef8e3dc0bc01fb537107a473904cbb80409b",
    "cross_cats_sorted": [
      "math.GN"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2023-01-15T20:08:03Z",
    "title_canon_sha256": "b43f7c607fcde88ba2a58823b7ba13e08a81ae5d5ade23bb4dad4d94c4de147d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2301.06175",
    "kind": "arxiv",
    "version": 2
  }
}