Pith Number

pith:WWAVMPEC

pith:2020:WWAVMPECJDCN2A7XMAVA7WEXU2

not attested not anchored not stored refs pending

Deciphering Solar Magnetic Activity: 140 Years Of The `Extended Solar Cycle' -- Mapping the Hale Cycle

Abhishek K. Srivastava, Dipankar Banerjee, Marco Velli, Mausumi Dikpati, Richard C. Altrock, Ricky Egeland, Robert J. Leamon, Scott W. McIntosh, Subhamoy Chatterjee

arxiv:2010.06048 v2 · 2020-10-12 · astro-ph.SR · physics.hist-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WWAVMPECJDCN2A7XMAVA7WEXU2}

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	2026-07-05T03:47:13.424481Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b581563c8248c4dd03f7602a0fd897a6b80e200cfdbaffe0f287d6abbece3be9

Aliases

arxiv: 2010.06048 · arxiv_version: 2010.06048v2 · doi: 10.48550/arxiv.2010.06048 · pith_short_12: WWAVMPECJDCN · pith_short_16: WWAVMPECJDCN2A7X · pith_short_8: WWAVMPEC

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/WWAVMPECJDCN2A7XMAVA7WEXU2 \
  | 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: b581563c8248c4dd03f7602a0fd897a6b80e200cfdbaffe0f287d6abbece3be9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "228163196e37d205b44c8e521a9cf93745b03a4d7f2de385381d162f1d289489",
    "cross_cats_sorted": [
      "physics.hist-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2020-10-12T21:43:49Z",
    "title_canon_sha256": "20a154bfc76d22b7ea59b99b13d77336d4fb3ab92593ac4254bbe552bf8e6fe9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2010.06048",
    "kind": "arxiv",
    "version": 2
  }
}