Pith Number

pith:SKZ55TNZ

pith:2018:SKZ55TNZCYEN3FSRWMB2GDYB6D

not attested not anchored not stored refs pending

Varieties of coarse spaces

Igor Protasov

arxiv:1803.07099 v3 · 2018-03-19 · 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{SKZ55TNZCYEN3FSRWMB2GDYB6D}

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	2026-05-18T00:12:43.285039Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

92b3decdb91608dd9651b303a30f01f0ec9becb6dbf539c2305857ff7e209235

Aliases

arxiv: 1803.07099 · arxiv_version: 1803.07099v3 · doi: 10.48550/arxiv.1803.07099 · pith_short_12: SKZ55TNZCYEN · pith_short_16: SKZ55TNZCYEN3FSR · pith_short_8: SKZ55TNZ

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/SKZ55TNZCYEN3FSRWMB2GDYB6D \
  | 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: 92b3decdb91608dd9651b303a30f01f0ec9becb6dbf539c2305857ff7e209235

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6b7b7c264fbe23303d2a12227c55dba03b143bfc55104805bf18b11f655cd00e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GN",
    "submitted_at": "2018-03-19T18:07:49Z",
    "title_canon_sha256": "1bb085249c949320e6ed38febddcd31f6e107849ebdc8e38bbb413df8832658e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.07099",
    "kind": "arxiv",
    "version": 3
  }
}