Pith Number

pith:QSKU6T33

pith:2018:QSKU6T33H5IZT5FCLM5HA2XAWX

not attested not anchored not stored refs pending

Hom-Groups, Representations and Homological Algebra

Mohammad Hassanzadeh

arxiv:1801.07398 v2 · 2018-01-23 · math.GR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QSKU6T33H5IZT5FCLM5HA2XAWX}

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	2026-05-18T00:20:16.090116Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

84954f4f7b3f5199f4a25b3a706ae0b5cfc3fdb8b53d3509fc9836e19b98b4fa

Aliases

arxiv: 1801.07398 · arxiv_version: 1801.07398v2 · doi: 10.48550/arxiv.1801.07398 · pith_short_12: QSKU6T33H5IZ · pith_short_16: QSKU6T33H5IZT5FC · pith_short_8: QSKU6T33

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/QSKU6T33H5IZT5FCLM5HA2XAWX \
  | 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: 84954f4f7b3f5199f4a25b3a706ae0b5cfc3fdb8b53d3509fc9836e19b98b4fa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "894be11194210d58efe71193296999c1537986d212d7aa9cd17224b5e045d432",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GR",
    "submitted_at": "2018-01-23T05:34:58Z",
    "title_canon_sha256": "bd7bc7e2cfc550ad3193a5843a530aa2be5ae9ac060a39208db818aa19f25057"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.07398",
    "kind": "arxiv",
    "version": 2
  }
}