Pith Number

pith:K45WG2TV

pith:2016:K45WG2TVZSGODV22PZLPZNKVIV

not attested not anchored not stored refs pending

Photospheric Magnetic Free Energy Density of Solar Active Regions

HongQi Zhang

arxiv:1608.07805 v3 · 2016-08-28 · 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{K45WG2TVZSGODV22PZLPZNKVIV}

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	2026-05-18T00:55:28.385464Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

573b636a75cc8ce1d75a7e56fcb555454da09429028070249dfa7c2f83c5556e

Aliases

arxiv: 1608.07805 · arxiv_version: 1608.07805v3 · doi: 10.48550/arxiv.1608.07805 · pith_short_12: K45WG2TVZSGO · pith_short_16: K45WG2TVZSGODV22 · pith_short_8: K45WG2TV

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/K45WG2TVZSGODV22PZLPZNKVIV \
  | 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: 573b636a75cc8ce1d75a7e56fcb555454da09429028070249dfa7c2f83c5556e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bd66efe41e40efeef3f4937318ec66f3129b112f8d656f41a8fd27cfc5e6de6e",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2016-08-28T12:43:57Z",
    "title_canon_sha256": "8689abde9cf802c55134e23848e1e9fd1f632bd62dbc4ee13d9e339533409110"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1608.07805",
    "kind": "arxiv",
    "version": 3
  }
}