Pith Number

pith:P5VNN4RF

pith:2018:P5VNN4RFIFI6B3EJMNRTCWACGO

not attested not anchored not stored refs pending

Changes in the sensitivity of solar p-mode frequency shifts to activity over three solar cycles

A.-M. Broomhall, G.R. Davies, R. Howe, S. Basu, W.J. Chaplin, Y. Elsworth

arxiv:1807.01504 v1 · 2018-07-04 · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{P5VNN4RFIFI6B3EJMNRTCWACGO}

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	2026-05-18T00:10:36.776456Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7f6ad6f2254151e0ec89636331580233a517a127039189339268a5f15d616b38

Aliases

arxiv: 1807.01504 · arxiv_version: 1807.01504v1 · doi: 10.48550/arxiv.1807.01504 · pith_short_12: P5VNN4RFIFI6 · pith_short_16: P5VNN4RFIFI6B3EJ · pith_short_8: P5VNN4RF

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/P5VNN4RFIFI6B3EJMNRTCWACGO \
  | 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: 7f6ad6f2254151e0ec89636331580233a517a127039189339268a5f15d616b38

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "28929ad0abd919f6787b73c0971661923121d28a552fea32da4db33b7a563fcd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2018-07-04T09:52:59Z",
    "title_canon_sha256": "c4dec631bd0f7652c4fe00b6607cc32bdf79d8dd3a5bef4a5722866a6694420f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.01504",
    "kind": "arxiv",
    "version": 1
  }
}