Pith Number

pith:EBPVJ3IH

pith:2019:EBPVJ3IH6TFSDUUI7JGT5C64LZ

not attested not anchored not stored refs pending

Gradient methods exploiting spectral properties

Hongchao Zhang, Xin-Wei Liu, Yakui Huang, Yu-Hong Dai

arxiv:1905.03870 v1 · 2019-05-09 · 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{EBPVJ3IH6TFSDUUI7JGT5C64LZ}

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	2026-05-17T23:46:35.346475Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

205f54ed07f4cb21d288fa4d3e8bdc5e70d6171a8c96856013443dc37a48aa71

Aliases

arxiv: 1905.03870 · arxiv_version: 1905.03870v1 · doi: 10.48550/arxiv.1905.03870 · pith_short_12: EBPVJ3IH6TFS · pith_short_16: EBPVJ3IH6TFSDUUI · pith_short_8: EBPVJ3IH

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/EBPVJ3IH6TFSDUUI7JGT5C64LZ \
  | 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: 205f54ed07f4cb21d288fa4d3e8bdc5e70d6171a8c96856013443dc37a48aa71

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b5202362112636a259c120ca5d81bf05064a4039aade291e9b68bcd9296c53af",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2019-05-09T21:46:25Z",
    "title_canon_sha256": "fb8428776a87f9deccba8e1bc98b9a24a1c315f458688e6d862b4743b62109a0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.03870",
    "kind": "arxiv",
    "version": 1
  }
}