Pith Number

pith:XZJNGXUN

pith:2025:XZJNGXUNWTJD7TILN7UYAVVYMT

not attested not anchored not stored refs pending

Code generation for solving and differentiating through convex optimization problems

Maximilian Schaller, Stephen Boyd

arxiv:2504.14099 v1 · 2025-04-18 · 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{XZJNGXUNWTJD7TILN7UYAVVYMT}

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	2026-07-05T10:51:10.808005Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

be52d35e8db4d23fcd0b6fe98056b864fb984cae59df8b0b63843c875c8c2a7e

Aliases

arxiv: 2504.14099 · arxiv_version: 2504.14099v1 · doi: 10.48550/arxiv.2504.14099 · pith_short_12: XZJNGXUNWTJD · pith_short_16: XZJNGXUNWTJD7TIL · pith_short_8: XZJNGXUN

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/XZJNGXUNWTJD7TILN7UYAVVYMT \
  | 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: be52d35e8db4d23fcd0b6fe98056b864fb984cae59df8b0b63843c875c8c2a7e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f66458ce8679fa4addea207a973359196eaaebcd1e103696a9f6a173238633d8",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2025-04-18T22:49:17Z",
    "title_canon_sha256": "7cec73c1bce9894a5eaa950c94256fe84329bfdd58ca43cb83bd0e5bce6d8f61"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2504.14099",
    "kind": "arxiv",
    "version": 1
  }
}