Pith Number

pith:LTMF5IWX

pith:2019:LTMF5IWXSFX7Y2E4VMPSVBPWG2

not attested not anchored not stored refs pending

Coarse structures on groups defined by $T$-sequences

D. Dikranjan, I. Protasov

arxiv:1902.02320 v1 · 2019-02-06 · math.GN

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LTMF5IWXSFX7Y2E4VMPSVBPWG2}

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	2026-05-17T23:54:37.338584Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5cd85ea2d7916ffc689cab1f2a85f636ac171f610b5a01bf72412b2e398cc9e5

Aliases

arxiv: 1902.02320 · arxiv_version: 1902.02320v1 · doi: 10.48550/arxiv.1902.02320 · pith_short_12: LTMF5IWXSFX7 · pith_short_16: LTMF5IWXSFX7Y2E4 · pith_short_8: LTMF5IWX

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/LTMF5IWXSFX7Y2E4VMPSVBPWG2 \
  | 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: 5cd85ea2d7916ffc689cab1f2a85f636ac171f610b5a01bf72412b2e398cc9e5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4d9a9d3b772f90af8f909277ed27a94a3e8f9a170022135459349f096993c805",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GN",
    "submitted_at": "2019-02-06T18:30:59Z",
    "title_canon_sha256": "1c7cefb3f63c40873e795e45c3b0c688d453492f4e7d8c1facbf7fb8aad54fbf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.02320",
    "kind": "arxiv",
    "version": 1
  }
}