Pith Number

pith:E66RMMU2

pith:2018:E66RMMU2STHOBKSEBW72GL4LYR

not attested not anchored not stored refs pending

On transitive group G-groupoids

Gheorghe Ivan

arxiv:1802.09368 v1 · 2018-02-23 · 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{E66RMMU2STHOBKSEBW72GL4LYR}

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	2026-05-18T00:22:33.880493Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

27bd16329a94cee0aa440dbfa32f8bc47a6faecbdd54d76f8653d1d02a981beb

Aliases

arxiv: 1802.09368 · arxiv_version: 1802.09368v1 · doi: 10.48550/arxiv.1802.09368 · pith_short_12: E66RMMU2STHO · pith_short_16: E66RMMU2STHOBKSE · pith_short_8: E66RMMU2

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/E66RMMU2STHOBKSEBW72GL4LYR \
  | 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: 27bd16329a94cee0aa440dbfa32f8bc47a6faecbdd54d76f8653d1d02a981beb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "caff0db09c2545e99c2df2021664fba435341383f7e9378a5ec7ff1c9017cedf",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GR",
    "submitted_at": "2018-02-23T08:28:54Z",
    "title_canon_sha256": "1dbca9a8a4a2df437736ccc1067a1ef417281b15b1a3ff6f849643ab4e253868"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.09368",
    "kind": "arxiv",
    "version": 1
  }
}