Pith Number

pith:NRX4P27W

pith:2013:NRX4P27WHZ2XBS2OTNJBE2W5DF

not attested not anchored not stored refs pending

Fine properties of Lp-cocycles which allow abundance of simple and trivial spectrum

Helder Vilarinho, Mario Bessa

arxiv:1302.6465 v1 · 2013-02-26 · math.DS

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

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	2026-05-18T02:57:35.973745Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6c6fc7ebf63e7570cb4e9b52126add19428a079a1c9a07500aca85e36d9cdf74

Aliases

arxiv: 1302.6465 · arxiv_version: 1302.6465v1 · doi: 10.48550/arxiv.1302.6465 · pith_short_12: NRX4P27WHZ2X · pith_short_16: NRX4P27WHZ2XBS2O · pith_short_8: NRX4P27W

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/NRX4P27WHZ2XBS2OTNJBE2W5DF \
  | 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: 6c6fc7ebf63e7570cb4e9b52126add19428a079a1c9a07500aca85e36d9cdf74

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "13bc7102570294ad72c4520fdf4916835e25e2afc47ceee84c41143c8cc8c00f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2013-02-26T15:49:36Z",
    "title_canon_sha256": "ba1331a369836ee9f4cb32b2242c447962aaccb8b116fdddfaa1fec9e97add39"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1302.6465",
    "kind": "arxiv",
    "version": 1
  }
}