Pith Number

pith:FAM457VM

pith:2025:FAM457VM27BGOW5RYZR3L6G4XU

not attested not anchored not stored refs pending

Spectral Estimation with Free Decompression

Chris van der Heide, Liam Hodgkinson, Michael W. Mahoney, Siavash Ameli

arxiv:2506.11994 v1 · 2025-06-13 · stat.ML · cs.LG · cs.NA · math.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{FAM457VM27BGOW5RYZR3L6G4XU}

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	2026-07-05T11:21:14.017578Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2819cefeacd7c2675bb1c663b5f8dcbd02e44d8a8c6c27439d516b6a53c79e82

Aliases

arxiv: 2506.11994 · arxiv_version: 2506.11994v1 · doi: 10.48550/arxiv.2506.11994 · pith_short_12: FAM457VM27BG · pith_short_16: FAM457VM27BGOW5R · pith_short_8: FAM457VM

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/FAM457VM27BGOW5RYZR3L6G4XU \
  | 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: 2819cefeacd7c2675bb1c663b5f8dcbd02e44d8a8c6c27439d516b6a53c79e82

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2e2146a8e76baebfbab35a9a9d320d5bf04c6d2a7fac5f7c13312387177b87d9",
    "cross_cats_sorted": [
      "cs.LG",
      "cs.NA",
      "math.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2025-06-13T17:49:25Z",
    "title_canon_sha256": "c4aad4121f4e89a7b86872fdbf5f3644073403b1d7103ca5cc46c6a50db992a1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2506.11994",
    "kind": "arxiv",
    "version": 1
  }
}