Pith Number

pith:Q5NWI2KL

pith:2016:Q5NWI2KL7JQSLXI66FE3CXNVFG

not attested not anchored not stored refs pending

The variable metric forward-backward splitting algorithm under mild differentiability assumptions

Saverio Salzo

arxiv:1605.00952 v2 · 2016-05-03 · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Q5NWI2KL7JQSLXI66FE3CXNVFG}

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	2026-05-18T00:45:20.163545Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

875b64694bfa6125dd1ef149b15db529a3e2be15dbd05a7893c05d785b10a00b

Aliases

arxiv: 1605.00952 · arxiv_version: 1605.00952v2 · doi: 10.48550/arxiv.1605.00952 · pith_short_12: Q5NWI2KL7JQS · pith_short_16: Q5NWI2KL7JQSLXI6 · pith_short_8: Q5NWI2KL

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/Q5NWI2KL7JQSLXI66FE3CXNVFG \
  | 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: 875b64694bfa6125dd1ef149b15db529a3e2be15dbd05a7893c05d785b10a00b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dfee6466da5a3e360f9d83ece825b4f59de8ebf9f1fbfd925abac7177724c972",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2016-05-03T15:35:54Z",
    "title_canon_sha256": "c7337683f38f5fd7978e3e2fa4d267842c53fefe919b69583c4a2ce82e57fab7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1605.00952",
    "kind": "arxiv",
    "version": 2
  }
}