Pith Number

pith:JJQV45Q4

pith:2012:JJQV45Q4DVF5JEKQBOFFIPIBNA

not attested not anchored not stored refs pending

Low frequency seeing and solar diameter measurements

Costantino Sigismondi

arxiv:1201.6463 v2 · 2012-01-31 · astro-ph.IM · 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{JJQV45Q4DVF5JEKQBOFFIPIBNA}

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	2026-05-18T01:58:37.725343Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4a615e761c1d4bd491500b8a543d01681b428138db524098b0311b2a3ef6f77d

Aliases

arxiv: 1201.6463 · arxiv_version: 1201.6463v2 · doi: 10.48550/arxiv.1201.6463 · pith_short_12: JJQV45Q4DVF5 · pith_short_16: JJQV45Q4DVF5JEKQ · pith_short_8: JJQV45Q4

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/JJQV45Q4DVF5JEKQBOFFIPIBNA \
  | 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: 4a615e761c1d4bd491500b8a543d01681b428138db524098b0311b2a3ef6f77d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "58c2edcd3759b20cc38b09e17ac79d530f050bcbf102a85ef65f6052733f000a",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2012-01-31T07:46:36Z",
    "title_canon_sha256": "4a6e2f87c8fae79a8b95c44914aa7802c9999e899f0cde18d9c7a4d8858b6f5d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.6463",
    "kind": "arxiv",
    "version": 2
  }
}