Pith Number

pith:HTNX4X7Q

pith:2017:HTNX4X7QJA4GCI7NXM3S65HBFW

not attested not anchored not stored refs pending

A Low-Rank Rounding Heuristic for Semidefinite Relaxation of Hydro Unit Commitment Problems

L. S. A. Martins, M. Paredes

arxiv:1711.06194 v1 · 2017-11-16 · 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{HTNX4X7QJA4GCI7NXM3S65HBFW}

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	2026-05-18T00:30:23.108673Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3cdb7e5ff048386123edbb372f74e12d81a3038eeb72bc51d2c17c98b4d96a03

Aliases

arxiv: 1711.06194 · arxiv_version: 1711.06194v1 · doi: 10.48550/arxiv.1711.06194 · pith_short_12: HTNX4X7QJA4G · pith_short_16: HTNX4X7QJA4GCI7N · pith_short_8: HTNX4X7Q

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/HTNX4X7QJA4GCI7NXM3S65HBFW \
  | 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: 3cdb7e5ff048386123edbb372f74e12d81a3038eeb72bc51d2c17c98b4d96a03

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1afc4008dd5170277cfa87e6b77958345e3edd4bdc9e56cd56946dc1f03596f1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2017-11-16T16:57:39Z",
    "title_canon_sha256": "e3d800bd22de5598ee441895bcba93b65ea9cb26c4e3744c985c95544c1604f5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1711.06194",
    "kind": "arxiv",
    "version": 1
  }
}