Pith Number

pith:T5TPUFPA

pith:2013:T5TPUFPAHIXZS4Y6SJ4W6Y4FAT

not attested not anchored not stored refs pending

D-loops

Ivan I. Deriyenko, Wieslaw A. Dudek

arxiv:1305.5898 v1 · 2013-05-25 · 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{T5TPUFPAHIXZS4Y6SJ4W6Y4FAT}

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	2026-05-18T03:24:53.415914Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9f66fa15e03a2f99731e92796f638504fa8c19a87312b0185031385e20a036cb

Aliases

arxiv: 1305.5898 · arxiv_version: 1305.5898v1 · doi: 10.48550/arxiv.1305.5898 · pith_short_12: T5TPUFPAHIXZ · pith_short_16: T5TPUFPAHIXZS4Y6 · pith_short_8: T5TPUFPA

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/T5TPUFPAHIXZS4Y6SJ4W6Y4FAT \
  | 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: 9f66fa15e03a2f99731e92796f638504fa8c19a87312b0185031385e20a036cb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6f98e45685300eb69dc4b8a6de562b7a4ab5f7b2885a5b5ba3f2b44fa8641194",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GR",
    "submitted_at": "2013-05-25T07:41:20Z",
    "title_canon_sha256": "da298aac855cb9ea07d129f8361794e7210bef1486c2afd4b12ce1a847c11232"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.5898",
    "kind": "arxiv",
    "version": 1
  }
}