Pith Number

pith:HK25CQGJ

pith:2018:HK25CQGJXYKKPPE77Q5OJV2FYF

not attested not anchored not stored refs pending

Strongly Rickart objects in abelian categories

Gabriela Olteanu, Septimiu Crivei

arxiv:1803.01751 v1 · 2018-03-05 · math.CT · 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{HK25CQGJXYKKPPE77Q5OJV2FYF}

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	2026-05-18T00:21:43.952163Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3ab5d140c9be14a7bc9ffc3ae4d745c14a19f5eeff193cccb48c3b9159acc2bc

Aliases

arxiv: 1803.01751 · arxiv_version: 1803.01751v1 · doi: 10.48550/arxiv.1803.01751 · pith_short_12: HK25CQGJXYKK · pith_short_16: HK25CQGJXYKKPPE7 · pith_short_8: HK25CQGJ

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/HK25CQGJXYKKPPE77Q5OJV2FYF \
  | 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: 3ab5d140c9be14a7bc9ffc3ae4d745c14a19f5eeff193cccb48c3b9159acc2bc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6f122e9194e5f3cbee518fc5c1d361f0b795b2aeb9d432e524870f91fbbe953b",
    "cross_cats_sorted": [
      "math.RA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CT",
    "submitted_at": "2018-03-05T16:07:33Z",
    "title_canon_sha256": "8a73a244605f6ccbf7d4a354574b79ff0a4c8d44efca7dcba7ed256b33d8f695"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.01751",
    "kind": "arxiv",
    "version": 1
  }
}