Pith Number

pith:YMF6NGWC

pith:2018:YMF6NGWCFG4AGIVXU73R7H5X3U

not attested not anchored not stored refs pending

The core and dual core inverses of morphisms with kernels

Dingguo Wang, Jianlong Chen, Mengmeng Zhou, Tingting Li

arxiv:1804.08820 v1 · 2018-04-24 · 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{YMF6NGWCFG4AGIVXU73R7H5X3U}

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	2026-05-18T00:17:37.227753Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c30be69ac229b80322b7a7f71f9fb7dd26e52f95d9f790accc550eb2f21abbe7

Aliases

arxiv: 1804.08820 · arxiv_version: 1804.08820v1 · doi: 10.48550/arxiv.1804.08820 · pith_short_12: YMF6NGWCFG4A · pith_short_16: YMF6NGWCFG4AGIVX · pith_short_8: YMF6NGWC

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/YMF6NGWCFG4AGIVXU73R7H5X3U \
  | 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: c30be69ac229b80322b7a7f71f9fb7dd26e52f95d9f790accc550eb2f21abbe7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b4430a156dd089288c08bc67f101a137895c978afde719efe0029e165ccaf28d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.RA",
    "submitted_at": "2018-04-24T02:46:23Z",
    "title_canon_sha256": "af1afd7892e9df12a83c3ddce6f02e655d58ad997d303dbae2aa8b1d77b0586e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.08820",
    "kind": "arxiv",
    "version": 1
  }
}