Pith Number

pith:KNHHSSE3

pith:2015:KNHHSSE3KFAL4ZJIS4IWAQK34V

not attested not anchored not stored refs pending

Inappropriate use of L-BFGS, Illustrated on frame field design

Dmitry Sokolov, Nicolas Ray

arxiv:1508.02826 v1 · 2015-08-12 · cs.GR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{KNHHSSE3KFAL4ZJIS4IWAQK34V}

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	2026-05-18T01:35:23.747897Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

534e79489b5140be6528971160415be54f485c08d74f78efc04b2ba278d1cbb4

Aliases

arxiv: 1508.02826 · arxiv_version: 1508.02826v1 · doi: 10.48550/arxiv.1508.02826 · pith_short_12: KNHHSSE3KFAL · pith_short_16: KNHHSSE3KFAL4ZJI · pith_short_8: KNHHSSE3

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/KNHHSSE3KFAL4ZJIS4IWAQK34V \
  | 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: 534e79489b5140be6528971160415be54f485c08d74f78efc04b2ba278d1cbb4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a55053a9a85a2a69f3f6c68ac6eec2634e639ab65a315a54ce28a48f0c0215c1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.GR",
    "submitted_at": "2015-08-12T07:02:19Z",
    "title_canon_sha256": "079415d9a1dee8c59a099ef4b48a8ca81bb590a1a15792cbdc42caf5a795db4d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1508.02826",
    "kind": "arxiv",
    "version": 1
  }
}