Pith Number

pith:T4RKFWTQ

pith:2011:T4RKFWTQ5XLM3OCFF7RTUOHYF3

not attested not anchored not stored refs pending

Undisturbed Mesosphere Optical Properties from Wide-Angle Frequent Twilight Sky Polarimetry

Igor A. Maslov, Oleg S. Ugolnikov

arxiv:1108.2827 v1 · 2011-08-13 · astro-ph.EP · physics.ao-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{T4RKFWTQ5XLM3OCFF7RTUOHYF3}

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	2026-05-18T04:15:35.556270Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9f22a2da70edd6cdb8452fe33a38f82ed43fc674e65977b7c7091d7d84d305b9

Aliases

arxiv: 1108.2827 · arxiv_version: 1108.2827v1 · doi: 10.48550/arxiv.1108.2827 · pith_short_12: T4RKFWTQ5XLM · pith_short_16: T4RKFWTQ5XLM3OCF · pith_short_8: T4RKFWTQ

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/T4RKFWTQ5XLM3OCFF7RTUOHYF3 \
  | 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: 9f22a2da70edd6cdb8452fe33a38f82ed43fc674e65977b7c7091d7d84d305b9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "04b2de58518b6d91c2cfd562c49779cc5c4fad3ffe63d5b693484efd5d6b0a12",
    "cross_cats_sorted": [
      "physics.ao-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2011-08-13T22:21:31Z",
    "title_canon_sha256": "689059106e4ee1232a48b77e4d86347d3f1c5807d4b0b3e3fc2c4ae11f30f5b8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1108.2827",
    "kind": "arxiv",
    "version": 1
  }
}