Pith Number

pith:ZEUVPRAE

pith:2021:ZEUVPRAE2CGE3WSMJM6R4YVGIH

not attested not anchored not stored refs pending

Algebraic quantification of an active region's contribution to the solar cycle

Jie Jiang, Jing-Xiu Wang, Zi-Fan Wang

arxiv:2104.04307 v2 · 2021-04-09 · 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{ZEUVPRAE2CGE3WSMJM6R4YVGIH}

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	2026-07-05T02:49:47.722888Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c92957c404d08c4dda4c4b3d1e62a641cd588c347ebeeda44668b01a2e912bd1

Aliases

arxiv: 2104.04307 · arxiv_version: 2104.04307v2 · doi: 10.48550/arxiv.2104.04307 · pith_short_12: ZEUVPRAE2CGE · pith_short_16: ZEUVPRAE2CGE3WSM · pith_short_8: ZEUVPRAE

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/ZEUVPRAE2CGE3WSMJM6R4YVGIH \
  | 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: c92957c404d08c4dda4c4b3d1e62a641cd588c347ebeeda44668b01a2e912bd1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f0b7f4fe6d3e4794843517358f0c6399cb579f0c44c50459ce04c3a3f86a7aa1",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2021-04-09T11:27:35Z",
    "title_canon_sha256": "1a1e09ab4526f3c5f6fc869d1ffed5bfc9acb0d635e89cb9b5a17f27ed585d75"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2104.04307",
    "kind": "arxiv",
    "version": 2
  }
}