Pith Number

pith:DPASSPA4

pith:2012:DPASSPA4VSOZ742SLYMK6VUN6Q

not attested not anchored not stored refs pending

Climatology of Mid-latitude Ionospheric Disturbances from the Very Large Array Low-frequency Sky Survey

J. F. Helmboldt, W. D. Cotton, W. M. Lane

arxiv:1209.1030 v1 · 2012-09-05 · physics.space-ph · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DPASSPA4VSOZ742SLYMK6VUN6Q}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T01:54:40.040455Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1bc1293c1cac9d9ff3525e18af568df40a4880dfac4dbf0579f688cbf99a3ae2

Aliases

arxiv: 1209.1030 · arxiv_version: 1209.1030v1 · doi: 10.48550/arxiv.1209.1030 · pith_short_12: DPASSPA4VSOZ · pith_short_16: DPASSPA4VSOZ742S · pith_short_8: DPASSPA4

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/DPASSPA4VSOZ742SLYMK6VUN6Q \
  | 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: 1bc1293c1cac9d9ff3525e18af568df40a4880dfac4dbf0579f688cbf99a3ae2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cd3075eeba54fc8bac8e25e97352f96bcc6dda81cc99225fbee1ab50db8117d8",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://creativecommons.org/licenses/publicdomain/",
    "primary_cat": "physics.space-ph",
    "submitted_at": "2012-09-05T16:22:30Z",
    "title_canon_sha256": "f5e4eb8fdf1aadc84c2312830e04d433364357f846dfe30e7c3972af9793083f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1209.1030",
    "kind": "arxiv",
    "version": 1
  }
}