Pith Number

pith:LL7AWQAI

pith:2012:LL7AWQAIGIZ5VPOO2I2NVD5TUV

not attested not anchored not stored refs pending

The infrared colors of the Sun

I. Ramirez, J. Melendez, L. Casagrande, M. Asplund

arxiv:1209.6127 v2 · 2012-09-27 · astro-ph.SR · astro-ph.CO · astro-ph.EP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LL7AWQAIGIZ5VPOO2I2NVD5TUV}

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	2026-05-18T03:39:51.589483Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5afe0b40083233dabdced234da8fb3a542da842003d9c54ef7349bc5e5340fdc

Aliases

arxiv: 1209.6127 · arxiv_version: 1209.6127v2 · doi: 10.48550/arxiv.1209.6127 · pith_short_12: LL7AWQAIGIZ5 · pith_short_16: LL7AWQAIGIZ5VPOO · pith_short_8: LL7AWQAI

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/LL7AWQAIGIZ5VPOO2I2NVD5TUV \
  | 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: 5afe0b40083233dabdced234da8fb3a542da842003d9c54ef7349bc5e5340fdc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "eb83951d19434ab82ed4e0e4a355524aa926fd9ce9b30768ee66935dcff678e9",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "astro-ph.EP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2012-09-27T05:29:56Z",
    "title_canon_sha256": "0b7fe8d173b2f83ed53d55415ad56c292d3a42d984bfb91e80fd5e11084ca49a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1209.6127",
    "kind": "arxiv",
    "version": 2
  }
}