Pith Number

pith:MQU7UEN2

pith:2019:MQU7UEN2BFK3DPWPYH45GYEKC3

not attested not anchored not stored refs pending

Evolution of Magnetic Helicity in Solar Cycle 24

Alexander G. Kosovichev, Alexei A. Pevtsov, Valery V. Pipin, Yang Liu

arxiv:1905.00772 v1 · 2019-05-02 · 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{MQU7UEN2BFK3DPWPYH45GYEKC3}

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	2026-05-17T23:43:34.407662Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6429fa11ba0955b1becfc1f9d3608a16d7ed2391358baa94df0547245332cfbb

Aliases

arxiv: 1905.00772 · arxiv_version: 1905.00772v1 · doi: 10.48550/arxiv.1905.00772 · pith_short_12: MQU7UEN2BFK3 · pith_short_16: MQU7UEN2BFK3DPWP · pith_short_8: MQU7UEN2

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/MQU7UEN2BFK3DPWPYH45GYEKC3 \
  | 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: 6429fa11ba0955b1becfc1f9d3608a16d7ed2391358baa94df0547245332cfbb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4c80308fa40feba37eadf0557fbc27a68a40bca594485b81514a04f847a8bd27",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2019-05-02T14:34:26Z",
    "title_canon_sha256": "0542fcbd6bd9d359f927059863ba85aad6e86f6805d7f5c86b23c8648eb1d488"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.00772",
    "kind": "arxiv",
    "version": 1
  }
}