Pith Number

pith:OPXYWS6I

pith:2011:OPXYWS6IYEYZCWK4EOWK7PJMCC

not attested not anchored not stored refs pending

A Bloch-Wigner complex for SL_2

Kevin Hutchinson

arxiv:1107.0264 v2 · 2011-07-01 · math.KT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OPXYWS6IYEYZCWK4EOWK7PJMCC}

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	2026-05-18T03:36:06.630417Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

73ef8b4bc8c13191595c23acafbd2c10b0b88792910636f87de6074c2e634b24

Aliases

arxiv: 1107.0264 · arxiv_version: 1107.0264v2 · doi: 10.48550/arxiv.1107.0264 · pith_short_12: OPXYWS6IYEYZ · pith_short_16: OPXYWS6IYEYZCWK4 · pith_short_8: OPXYWS6I

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/OPXYWS6IYEYZCWK4EOWK7PJMCC \
  | 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: 73ef8b4bc8c13191595c23acafbd2c10b0b88792910636f87de6074c2e634b24

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3ec75e0d26ae92757a3ea54f816bf41f59f1bb7692fd630c3a9ee55742bf5b62",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.KT",
    "submitted_at": "2011-07-01T16:11:45Z",
    "title_canon_sha256": "4795b9ad659d37e965b06b7fd98f79521deabd638b435290fd536b092aca80df"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1107.0264",
    "kind": "arxiv",
    "version": 2
  }
}