Pith Number

pith:Q26U2ZC4

pith:2018:Q26U2ZC4TNPTCESCZO5ISIDR23

not attested not anchored not stored refs pending

Bihelical spectrum of solar magnetic helicity and its evolution

Andreas Lagg, Axel Brandenburg, Ilpo Virtanen, Maarit J. K\"apyl\"a, Nishant K. Singh, Petri J. K\"apyl\"a

arxiv:1804.04994 v1 · 2018-04-13 · 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{Q26U2ZC4TNPTCESCZO5ISIDR23}

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	2026-05-17T23:56:34.042812Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

86bd4d645c9b5f311242cbba892071d6cc711583107cb9e8b3af2c2002b2b9a0

Aliases

arxiv: 1804.04994 · arxiv_version: 1804.04994v1 · doi: 10.48550/arxiv.1804.04994 · pith_short_12: Q26U2ZC4TNPT · pith_short_16: Q26U2ZC4TNPTCESC · pith_short_8: Q26U2ZC4

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/Q26U2ZC4TNPTCESCZO5ISIDR23 \
  | 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: 86bd4d645c9b5f311242cbba892071d6cc711583107cb9e8b3af2c2002b2b9a0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "79ca36a7dcac70706930603e8c70c6690e235f757225d7cd5eb436f253de0043",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2018-04-13T15:36:30Z",
    "title_canon_sha256": "418a0f5e00e801756da13dc40d2ca306fd204114c28503d73d22c38b653d319a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.04994",
    "kind": "arxiv",
    "version": 1
  }
}