Pith Number

pith:XU7DDC6D

pith:2015:XU7DDC6DVC53PCGKV7N4LNDOSA

not attested not anchored not stored refs pending

Free idempotent generated semigroups over bands

Victoria Gould, Yang Dandan

arxiv:1501.00912 v1 · 2015-01-05 · 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{XU7DDC6DVC53PCGKV7N4LNDOSA}

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	2026-05-18T02:30:01.624213Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bd3e318bc3a8bbb788caafdbc5b46e9024c607519b94fdfa6c501114f8b87fa4

Aliases

arxiv: 1501.00912 · arxiv_version: 1501.00912v1 · doi: 10.48550/arxiv.1501.00912 · pith_short_12: XU7DDC6DVC53 · pith_short_16: XU7DDC6DVC53PCGK · pith_short_8: XU7DDC6D

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/XU7DDC6DVC53PCGKV7N4LNDOSA \
  | 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: bd3e318bc3a8bbb788caafdbc5b46e9024c607519b94fdfa6c501114f8b87fa4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "442fed7847648795b44d4c4104442e8864de55a0de06478d2b97cbd390681beb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.RA",
    "submitted_at": "2015-01-05T16:29:19Z",
    "title_canon_sha256": "25ee387312a1cd93a2eacf41c3512e20535edff0fbca4b9df3e50593a4ef73a2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1501.00912",
    "kind": "arxiv",
    "version": 1
  }
}