Pith Number

pith:HBLAQV3V

pith:2017:HBLAQV3VKQKEYEWRNVDILICA7X

not attested not anchored not stored refs pending

Homogeneity of Inverse Semigroups

Thomas Quinn-Gregson

arxiv:1706.00975 v2 · 2017-06-03 · math.RA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HBLAQV3VKQKEYEWRNVDILICA7X}

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	2026-05-18T00:38:12.683035Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

385608577554144c12d16d4685a040fdcfa8d017ecd1ecd70c29f86b39aa83f8

Aliases

arxiv: 1706.00975 · arxiv_version: 1706.00975v2 · doi: 10.48550/arxiv.1706.00975 · pith_short_12: HBLAQV3VKQKE · pith_short_16: HBLAQV3VKQKEYEWR · pith_short_8: HBLAQV3V

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/HBLAQV3VKQKEYEWRNVDILICA7X \
  | 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: 385608577554144c12d16d4685a040fdcfa8d017ecd1ecd70c29f86b39aa83f8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3a7375507dabf22667725423e2e56e7ed60f4868cf16ef9d1166df1725697386",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.RA",
    "submitted_at": "2017-06-03T16:38:22Z",
    "title_canon_sha256": "f6694f84e837a5f04f6197b1e67222e931f3c33a9a8ab0990a239192d4e473aa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1706.00975",
    "kind": "arxiv",
    "version": 2
  }
}