Pith Number

pith:VTF7QDGL

pith:2011:VTF7QDGLLWE2A7747OV66NEV3C

not attested not anchored not stored refs pending

Increasing the Fine Structure Visibility of the Hinode SOT Ca II H Filtergrams

E. Tavabi, S. Koutchmy

arxiv:1104.5580 v2 · 2011-04-29 · 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{VTF7QDGLLWE2A7747OV66NEV3C}

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	2026-05-18T02:02:13.069427Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

accbf80ccb5d89a07ffcfbabef3495d8af95a51330b83320d52a606ea81dd7f4

Aliases

arxiv: 1104.5580 · arxiv_version: 1104.5580v2 · doi: 10.48550/arxiv.1104.5580 · pith_short_12: VTF7QDGLLWE2 · pith_short_16: VTF7QDGLLWE2A774 · pith_short_8: VTF7QDGL

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/VTF7QDGLLWE2A7747OV66NEV3C \
  | 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: accbf80ccb5d89a07ffcfbabef3495d8af95a51330b83320d52a606ea81dd7f4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "895f7e751f918ba6bbe123d9ec26b0cf51b5343ec3d60f4f64daa3de7d07bf25",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2011-04-29T09:25:23Z",
    "title_canon_sha256": "a0879ecfdb6d2b8e39334b68e25fe68364eba54ca8b05b2d2f9fc4f1ad0962be"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1104.5580",
    "kind": "arxiv",
    "version": 2
  }
}