Pith Number

pith:D7FTSBKB

pith:2011:D7FTSBKBZZ72UV33YCUH2YWKRB

not attested not anchored not stored refs pending

Almost Settling the Hardness of Noncommutative Determinant

Alistair Sinclair, Prahladh Harsha, Srikanth Srinivasan, Steve Chien

arxiv:1101.1169 v1 · 2011-01-06 · cs.CC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{D7FTSBKBZZ72UV33YCUH2YWKRB}

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	2026-05-18T00:03:59.838764Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1fcb390541ce7faa577bc0a87d62ca885a6b1b95534c600e0651940318a90428

Aliases

arxiv: 1101.1169 · arxiv_version: 1101.1169v1 · doi: 10.48550/arxiv.1101.1169 · pith_short_12: D7FTSBKBZZ72 · pith_short_16: D7FTSBKBZZ72UV33 · pith_short_8: D7FTSBKB

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/D7FTSBKBZZ72UV33YCUH2YWKRB \
  | 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: 1fcb390541ce7faa577bc0a87d62ca885a6b1b95534c600e0651940318a90428

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "00d47c299cad518ab817d58831585b73a1ae3f37800dd8b0c62fe3d15f2a8558",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2011-01-06T09:14:42Z",
    "title_canon_sha256": "529d59c7f06b5bd738182eab2ab6b9994f842808b0d7d611b001563774149c6b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1101.1169",
    "kind": "arxiv",
    "version": 1
  }
}