Pith Number

pith:CMNR7C5M

pith:2017:CMNR7C5MVHBRHCB4JWRQJX7MX5

not attested not anchored not stored refs pending

The chromospheric magnetic field in active regions derived from spectropolarimetry of Ca II 8542

Abdelrazek M. K. Shaltout, Ali G. A. Abdelkawy, M. M. Beheary

arxiv:1712.06828 v1 · 2017-12-19 · astro-ph.SR · physics.space-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{CMNR7C5MVHBRHCB4JWRQJX7MX5}

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	2026-05-18T00:27:40.261601Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

131b1f8baca9c313883c4da304dfecbf60e77f5bf5b092113a22d194a7d0a18b

Aliases

arxiv: 1712.06828 · arxiv_version: 1712.06828v1 · doi: 10.48550/arxiv.1712.06828 · pith_short_12: CMNR7C5MVHBR · pith_short_16: CMNR7C5MVHBRHCB4 · pith_short_8: CMNR7C5M

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/CMNR7C5MVHBRHCB4JWRQJX7MX5 \
  | 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: 131b1f8baca9c313883c4da304dfecbf60e77f5bf5b092113a22d194a7d0a18b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "852a7486b242eb3590e0a2f214f3ff1765ff3a1ced6c759a047623cd150163eb",
    "cross_cats_sorted": [
      "physics.space-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2017-12-19T09:07:56Z",
    "title_canon_sha256": "665162d49d386ff48a5e769787b7be1af71d14135da19d95377f358b0fd07261"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1712.06828",
    "kind": "arxiv",
    "version": 1
  }
}