Pith Number

pith:ML6UAHBJ

pith:2023:ML6UAHBJDQD2FK4NVPYWFACCZX

not attested not anchored not stored refs pending

The force-freeness of the solar photosphere: Revisit with new approach and large datasets

Haocheng Zhang, Mei Zhang

arxiv:2309.15407 v1 · 2023-09-27 · 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{ML6UAHBJDQD2FK4NVPYWFACCZX}

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	2026-07-05T06:54:45.497173Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

62fd401c291c07a2ab8dabf1628042cdef7e7bf79461e8705b375d906c85954e

Aliases

arxiv: 2309.15407 · arxiv_version: 2309.15407v1 · doi: 10.48550/arxiv.2309.15407 · pith_short_12: ML6UAHBJDQD2 · pith_short_16: ML6UAHBJDQD2FK4N · pith_short_8: ML6UAHBJ

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/ML6UAHBJDQD2FK4NVPYWFACCZX \
  | 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: 62fd401c291c07a2ab8dabf1628042cdef7e7bf79461e8705b375d906c85954e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ea0cf21b14082ad8a5cccf275d426603f2314b9ef1053233d7475d5adb9a0d89",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2023-09-27T05:19:56Z",
    "title_canon_sha256": "616fd6ed88d362b1f775df522ed80cc3558ad4633ba043d3bacea0f486ec7e83"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2309.15407",
    "kind": "arxiv",
    "version": 1
  }
}