Pith Number

pith:IG7MGGM5

pith:2019:IG7MGGM5C52YCNFHDT6PRJ6HMC

not attested not anchored not stored refs pending

Solving Random Systems of Quadratic Equations with Tanh Wirtinger Flow

Ye Zhang, Zhenwei Luo

arxiv:1905.09320 v1 · 2019-05-22 · math.OC · cs.CC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IG7MGGM5C52YCNFHDT6PRJ6HMC}

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	2026-05-17T23:45:19.620880Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

41bec3199d17758134a71cfcf8a7c760a79fdd53e6fb445d5aeb002ca505ab72

Aliases

arxiv: 1905.09320 · arxiv_version: 1905.09320v1 · doi: 10.48550/arxiv.1905.09320 · pith_short_12: IG7MGGM5C52Y · pith_short_16: IG7MGGM5C52YCNFH · pith_short_8: IG7MGGM5

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/IG7MGGM5C52YCNFHDT6PRJ6HMC \
  | 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: 41bec3199d17758134a71cfcf8a7c760a79fdd53e6fb445d5aeb002ca505ab72

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e4be0d377360d9b56b5d3b2c69396e0865821956011161ed615d89ac0f509b5a",
    "cross_cats_sorted": [
      "cs.CC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2019-05-22T18:33:21Z",
    "title_canon_sha256": "894012cdc3e4d78aad51ff83ab8f2d5cff2d5d1622de3c6f8e7aa403492d9563"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.09320",
    "kind": "arxiv",
    "version": 1
  }
}