Pith Number

pith:T4U2EHQW

pith:2018:T4U2EHQW2GRSYC7LE77LC3HKLV

not attested not anchored not stored refs pending

A Solar cycle correlation of coronal element abundances in Sun-as-a-star observations

David H. Brooks, Deborah Baker, Harry P. Warren, Lidia van Driel-Gesztelyi

arxiv:1802.00563 v1 · 2018-02-02 · 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{T4U2EHQW2GRSYC7LE77LC3HKLV}

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	2026-05-18T00:24:32.872759Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9f29a21e16d1a32c0beb27feb16cea5d7688bca2a7be051b9353d0df27baf69c

Aliases

arxiv: 1802.00563 · arxiv_version: 1802.00563v1 · doi: 10.48550/arxiv.1802.00563 · pith_short_12: T4U2EHQW2GRS · pith_short_16: T4U2EHQW2GRSYC7L · pith_short_8: T4U2EHQW

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/T4U2EHQW2GRSYC7LE77LC3HKLV \
  | 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: 9f29a21e16d1a32c0beb27feb16cea5d7688bca2a7be051b9353d0df27baf69c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "42786af60e0d9e698a270cd0985a3a5bd20e23f8513e4cdb18e2f27eb6a2b47d",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2018-02-02T05:41:13Z",
    "title_canon_sha256": "785abc8d8f6d316c79921361a7024e70b15305b4a4c4975d9aaa6eb52687c1d7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.00563",
    "kind": "arxiv",
    "version": 1
  }
}