Pith Number

pith:5BBK6O4Z

pith:2015:5BBK6O4Z3SFALP6ICA3ELVRSAZ

not attested not anchored not stored refs pending

On the Feasibility of Distributed Kernel Regression for Big Data

Chen Xu, Runze Li, Yongquan Zhang

arxiv:1505.00869 v1 · 2015-05-05 · stat.ML

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	2026-05-18T02:16:59.757137Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e842af3b99dc8a05bfc8103645d632066cafe640235c325470de3a038e5ac077

Aliases

arxiv: 1505.00869 · arxiv_version: 1505.00869v1 · doi: 10.48550/arxiv.1505.00869 · pith_short_12: 5BBK6O4Z3SFA · pith_short_16: 5BBK6O4Z3SFALP6I · pith_short_8: 5BBK6O4Z

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/5BBK6O4Z3SFALP6ICA3ELVRSAZ \
  | 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: e842af3b99dc8a05bfc8103645d632066cafe640235c325470de3a038e5ac077

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bf54e233e6d783796a84f7d3e3f96916327b8f21783f332f690d8194b7285168",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2015-05-05T02:48:12Z",
    "title_canon_sha256": "eaf2c16ce64f53a74abe0b936ce554152dda99fe85675443fbfa72bdd24f075a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.00869",
    "kind": "arxiv",
    "version": 1
  }
}