Pith Number

pith:HADV6YP6

pith:2013:HADV6YP6UON77BS3C2NWY2O43R

not attested not anchored not stored refs pending

Application of Fourier and Wavelet Transform for analysing 300 years Sunspot numbers to Explain the Solar Cycles

Asish Mitra, Debadatta Dash, Prasanta K.Panigrahi, Sabyasachi Mukhopadhyay

arxiv:1310.6876 v2 · 2013-10-25 · cs.CE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HADV6YP6UON77BS3C2NWY2O43R}

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	2026-05-18T03:05:08.417939Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

38075f61fea39bff865b169b6c69dcdc5ae209eccdf9635c6d636dd11af7118d

Aliases

arxiv: 1310.6876 · arxiv_version: 1310.6876v2 · doi: 10.48550/arxiv.1310.6876 · pith_short_12: HADV6YP6UON7 · pith_short_16: HADV6YP6UON77BS3 · pith_short_8: HADV6YP6

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/HADV6YP6UON77BS3C2NWY2O43R \
  | 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: 38075f61fea39bff865b169b6c69dcdc5ae209eccdf9635c6d636dd11af7118d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6a809a5039d72c1133b1f2440805f137a35f238f0810b2eb92f0a03eface4e4d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CE",
    "submitted_at": "2013-10-25T11:00:02Z",
    "title_canon_sha256": "5d5f1c2e2f8d2d56725df40e7cf112afd1101452a60d64d57f28875663f5c937"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1310.6876",
    "kind": "arxiv",
    "version": 2
  }
}