Pith Number

pith:Y2UGJNNY

pith:2009:Y2UGJNNYNWRD4AMFPK447VI7B3

not attested not anchored not stored refs pending

Phase III of USO Solar Vector Magnetograph

P. Venkatakrishnan, Sanjay Gosain

arxiv:0907.5267 v1 · 2009-07-30 · astro-ph.SR · astro-ph.IM

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Y2UGJNNYNWRD4AMFPK447VI7B3}

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	2026-05-18T02:12:46.229402Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c6a864b5b86da23e01857ab9cfd51f0ec75355753fd6cbc1f65906324ba71e0a

Aliases

arxiv: 0907.5267 · arxiv_version: 0907.5267v1 · doi: 10.48550/arxiv.0907.5267 · pith_short_12: Y2UGJNNYNWRD · pith_short_16: Y2UGJNNYNWRD4AMF · pith_short_8: Y2UGJNNY

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/Y2UGJNNYNWRD4AMFPK447VI7B3 \
  | 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: c6a864b5b86da23e01857ab9cfd51f0ec75355753fd6cbc1f65906324ba71e0a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9cd1074bca203348f57c6d522b015dcc7aa7a147865e2c671e1c1408da8dcfbb",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-07-30T06:53:31Z",
    "title_canon_sha256": "35b16e1d95db2dd833ddc6b79c22c7a73628525549bb9c98ea95967abd4246d1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0907.5267",
    "kind": "arxiv",
    "version": 1
  }
}