Pith Number

pith:SFISO4LY

pith:2009:SFISO4LYYHHB5TDX2RBPG5EOP4

not attested not anchored not stored refs pending

On the Magnetic Field Strength of Active Region Filaments

(2) High Altitude Observatory (NCAR), (3) Institute of Space, Astronautical Science, Boulder, C. Kuckein (1), CO, Japan), La Laguna, R. Casini (2), R. Centeno (2), R. Manso Sainz (1), Sagamihara, Spain, T. Shimizu (3) ((1) Instituto de Astrof\'isica de Canarias, V. Martinez Pillet (1)

arxiv:0904.4876 v1 · 2009-04-30 · 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{SFISO4LYYHHB5TDX2RBPG5EOP4}

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	2026-05-18T02:13:48.740443Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9151277178c1ce1ecc77d442f3748e7f25e4437e304a38af6256a90e9ce6599c

Aliases

arxiv: 0904.4876 · arxiv_version: 0904.4876v1 · doi: 10.48550/arxiv.0904.4876 · pith_short_12: SFISO4LYYHHB · pith_short_16: SFISO4LYYHHB5TDX · pith_short_8: SFISO4LY

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/SFISO4LYYHHB5TDX2RBPG5EOP4 \
  | 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: 9151277178c1ce1ecc77d442f3748e7f25e4437e304a38af6256a90e9ce6599c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "697ddc5af6d05017705c7215a84f3ab339e087e4057017d9db04d30931e7de93",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-04-30T16:21:15Z",
    "title_canon_sha256": "4fbcd79e9be9a369c72a176e352325216cf5257f07333b733dc4a58042b42639"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.4876",
    "kind": "arxiv",
    "version": 1
  }
}