Pith Number

pith:QLJL3KFR

pith:2010:QLJL3KFRGZ3IZWQ6NG5WGLUH6Y

not attested not anchored not stored refs pending

Optical circular polarization in quasars

B. Borguet, D. Hutsem\'ekers, D. Sluse, H. Lamy, R. Cabanac

arxiv:1009.4049 v1 · 2010-09-21 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QLJL3KFRGZ3IZWQ6NG5WGLUH6Y}

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	2026-05-18T02:05:19.349309Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

82d2bda8b136768cda1e69bb632e87f60adb6241225c5296f42c390bb66a214b

Aliases

arxiv: 1009.4049 · arxiv_version: 1009.4049v1 · doi: 10.48550/arxiv.1009.4049 · pith_short_12: QLJL3KFRGZ3I · pith_short_16: QLJL3KFRGZ3IZWQ6 · pith_short_8: QLJL3KFR

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/QLJL3KFRGZ3IZWQ6NG5WGLUH6Y \
  | 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: 82d2bda8b136768cda1e69bb632e87f60adb6241225c5296f42c390bb66a214b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c86463a827cf752ce73b29efbfa6de9e1b25416c6946aaad7639c8b55c0871b2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2010-09-21T10:31:11Z",
    "title_canon_sha256": "1a30344535d3302c37fb9ca4ecac263fb3965835d3074f48d9259b7ba5516735"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1009.4049",
    "kind": "arxiv",
    "version": 1
  }
}