Pith Number

pith:4SG447RE

pith:2009:4SG447RE5RIJ4AVB3UKOMFY3QW

not attested not anchored not stored refs pending

Optical linear polarization in ultra cool dwarfs: A tool to probe dust in the ultra cool dwarf atmospheres

E. L. Martin, H. Bouy, M. R. Zapatero Osorio, N. Phan-Bao, R. Tata, S. Sengupta

arxiv:0910.5400 v1 · 2009-10-28 · 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{4SG447RE5RIJ4AVB3UKOMFY3QW}

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	2026-05-18T02:11:02.141048Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e48dce7e24ec509e02a1dd14e6171b8583ef51533228ee395de85ea5891f35f9

Aliases

arxiv: 0910.5400 · arxiv_version: 0910.5400v1 · doi: 10.48550/arxiv.0910.5400 · pith_short_12: 4SG447RE5RIJ · pith_short_16: 4SG447RE5RIJ4AVB · pith_short_8: 4SG447RE

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/4SG447RE5RIJ4AVB3UKOMFY3QW \
  | 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: e48dce7e24ec509e02a1dd14e6171b8583ef51533228ee395de85ea5891f35f9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f52a244f8d17fc5d6e6b1dc7beac3166feddb628baeac202aa88c4c7971f18ee",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-10-28T15:10:03Z",
    "title_canon_sha256": "e2ef547215f572c81daf747e087acc20a92de33dc1c0c3f57e7ac86888e44ec5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0910.5400",
    "kind": "arxiv",
    "version": 1
  }
}