Pith Number

pith:PK3HTDF5

pith:2025:PK3HTDF5S5RVK5GJ37NZV2P34E

not attested not anchored not stored refs pending

Nonlinear Optimal Recovery in Hilbert Spaces

Daozhe Lin, Qiang Du

arxiv:2506.00704 v2 · 2025-05-31 · math.NA · cs.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PK3HTDF5S5RVK5GJ37NZV2P34E}

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	2026-07-05T11:16:09.245119Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7ab6798cbd97635574c9dfdb9ae9fbe12e1deee98b935ed94615612cd002458a

Aliases

arxiv: 2506.00704 · arxiv_version: 2506.00704v2 · doi: 10.48550/arxiv.2506.00704 · pith_short_12: PK3HTDF5S5RV · pith_short_16: PK3HTDF5S5RVK5GJ · pith_short_8: PK3HTDF5

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/PK3HTDF5S5RVK5GJ37NZV2P34E \
  | 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: 7ab6798cbd97635574c9dfdb9ae9fbe12e1deee98b935ed94615612cd002458a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "31f02c39741056b492d941b4b5952a3e3df1aec40302de97ddd234ab7ec14420",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2025-05-31T20:19:07Z",
    "title_canon_sha256": "8fbe0a3c6c7b852352aaa3f446c8548a3239c5766b829741b88e98980a403204"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2506.00704",
    "kind": "arxiv",
    "version": 2
  }
}