Pith Number

pith:7QMTINVD

pith:2013:7QMTINVDFKC43U7XS33ZBIC5ZO

not attested not anchored not stored refs pending

Minimum-variance multitaper spectral estimation on the sphere

Frederik J. Simons, Mark A. Wieczorek

arxiv:1306.3254 v1 · 2013-06-13 · astro-ph.IM · astro-ph.EP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7QMTINVDFKC43U7XS33ZBIC5ZO}

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	2026-05-18T03:20:57.989961Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fc193436a32a85cdd3f796f790a05dcbae9e5cb562b9e0f72d314eb648c9a4bb

Aliases

arxiv: 1306.3254 · arxiv_version: 1306.3254v1 · doi: 10.48550/arxiv.1306.3254 · pith_short_12: 7QMTINVDFKC4 · pith_short_16: 7QMTINVDFKC43U7X · pith_short_8: 7QMTINVD

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/7QMTINVDFKC43U7XS33ZBIC5ZO \
  | 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: fc193436a32a85cdd3f796f790a05dcbae9e5cb562b9e0f72d314eb648c9a4bb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4e8865d6a5f2ee4f4c5deb486030a3dd3e44c6a5342ce241ecfe937d67268749",
    "cross_cats_sorted": [
      "astro-ph.EP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2013-06-13T20:43:43Z",
    "title_canon_sha256": "6e6e30d327838dce35bb4e37113e5ee148577094a8fd680798060a1bc55a9afa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1306.3254",
    "kind": "arxiv",
    "version": 1
  }
}