Pith Number

pith:7CT64BPR

pith:2018:7CT64BPRPNPDWR73CKKSZWV7HA

not attested not anchored not stored refs pending

Removal of Spectro-Polarimetric Fringes by 2D PCA

Roberto Casini, Wenxian Li

arxiv:1811.03211 v1 · 2018-11-08 · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7CT64BPRPNPDWR73CKKSZWV7HA}

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	2026-05-18T00:01:18.843011Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f8a7ee05f17b5e3b47fb12952cdabf3834068febeaef7eb8e2d2a8a8ea4f06d4

Aliases

arxiv: 1811.03211 · arxiv_version: 1811.03211v1 · doi: 10.48550/arxiv.1811.03211 · pith_short_12: 7CT64BPRPNPD · pith_short_16: 7CT64BPRPNPDWR73 · pith_short_8: 7CT64BPR

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/7CT64BPRPNPDWR73CKKSZWV7HA \
  | 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: f8a7ee05f17b5e3b47fb12952cdabf3834068febeaef7eb8e2d2a8a8ea4f06d4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f74395e58126bec4dcdd5db9d110a8c3343bca7a71c4e185ac2d9e10a78446a0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2018-11-08T01:30:54Z",
    "title_canon_sha256": "6da5d6b330744ec7c241c7c103b4c7d3115a1d442e4ed723ae9c14165237d134"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.03211",
    "kind": "arxiv",
    "version": 1
  }
}