Pith Number

pith:VF47GRNF

pith:2015:VF47GRNFRHV6HGSBNOZBDQJN2Y

not attested not anchored not stored refs pending

A note on implementations of the Boosting Algorithm and Heterogeneous Multiscale Methods

John Maclean

arxiv:1509.01557 v1 · 2015-09-04 · math.DS · math.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VF47GRNFRHV6HGSBNOZBDQJN2Y}

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	2026-05-18T01:33:57.457701Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a979f345a589ebe39a416bb211c12dd61c59965eb4985e706538f49ad923e7f6

Aliases

arxiv: 1509.01557 · arxiv_version: 1509.01557v1 · doi: 10.48550/arxiv.1509.01557 · pith_short_12: VF47GRNFRHV6 · pith_short_16: VF47GRNFRHV6HGSB · pith_short_8: VF47GRNF

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/VF47GRNFRHV6HGSBNOZBDQJN2Y \
  | 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: a979f345a589ebe39a416bb211c12dd61c59965eb4985e706538f49ad923e7f6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "eb9d4af7f720892c89c5a0169cdcc8219e8c3113b176c56d19cc95c2afc124d0",
    "cross_cats_sorted": [
      "math.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2015-09-04T18:40:22Z",
    "title_canon_sha256": "19fbea161592e8d8c74972ca4837c6c084b353086c81c506ef41ce698f746001"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.01557",
    "kind": "arxiv",
    "version": 1
  }
}