Pith Number

pith:YOLMTPKO

pith:2019:YOLMTPKO6FGUS637XMOHLJO2RI

not attested not anchored not stored refs pending

Recovering the unsigned photospheric magnetic field from Ca II K observations

Fabrizio Giorgi, Ilaria Ermolli, Kok Leng Yeo, Natalie A. Krivova, Sami K. Solanki, Theodosios Chatzistergos

arxiv:1905.03453 v1 · 2019-05-09 · 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{YOLMTPKO6FGUS637XMOHLJO2RI}

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	2026-05-17T23:42:19.231957Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c396c9bd4ef14d497b7fbb1c75a5da8a3f460d4b799e0da6c54c55689c9c1dd7

Aliases

arxiv: 1905.03453 · arxiv_version: 1905.03453v1 · doi: 10.48550/arxiv.1905.03453 · pith_short_12: YOLMTPKO6FGU · pith_short_16: YOLMTPKO6FGUS637 · pith_short_8: YOLMTPKO

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/YOLMTPKO6FGUS637XMOHLJO2RI \
  | 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: c396c9bd4ef14d497b7fbb1c75a5da8a3f460d4b799e0da6c54c55689c9c1dd7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fc1d49a4e48fc963be0d7b9eb7a3849c5903331c4fa9503b166be990ac349148",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2019-05-09T06:37:48Z",
    "title_canon_sha256": "007c62b8c161bc8663ed2ebbedf462b1d64d7831123690776d13d0bb804eabd6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.03453",
    "kind": "arxiv",
    "version": 1
  }
}