Pith Number

pith:HHNYAE4L

pith:2017:HHNYAE4LNXDU3VIJS7KBUOTYWN

not attested not anchored not stored refs pending

LAP: a Linearize and Project Method for Solving Inverse Problems with Coupled Variables

James Herring, James Nagy, Lars Ruthotto

arxiv:1705.09992 v3 · 2017-05-28 · math.NA · cs.CV · cs.NA · 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{HHNYAE4LNXDU3VIJS7KBUOTYWN}

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	2026-05-17T23:42:31.117418Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

39db80138b6dc74dd50997d41a3a78b34a6e1d92e3b3195e55b52958a30215e1

Aliases

arxiv: 1705.09992 · arxiv_version: 1705.09992v3 · doi: 10.48550/arxiv.1705.09992 · pith_short_12: HHNYAE4LNXDU · pith_short_16: HHNYAE4LNXDU3VIJ · pith_short_8: HHNYAE4L

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/HHNYAE4LNXDU3VIJS7KBUOTYWN \
  | 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: 39db80138b6dc74dd50997d41a3a78b34a6e1d92e3b3195e55b52958a30215e1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "008f6bdc77a2bf40a392a8b610f8a4afc6fbbde6aedca41a6337dc64f74d1479",
    "cross_cats_sorted": [
      "cs.CV",
      "cs.NA",
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2017-05-28T21:11:53Z",
    "title_canon_sha256": "e527e84bc19d96865cbd8d20c36ee04b74f4049d194a477dd023af97275d4798"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1705.09992",
    "kind": "arxiv",
    "version": 3
  }
}