Pith Number

pith:NW7JK3US

pith:2021:NW7JK3US4WIR6BGVZU6B73X4IW

not attested not anchored not stored refs pending

Optimal multifrequency weighting for CMB lensing

Blake Sherwin, Emmanuel Schaan, Noah Sailer, Omar Darwish, Simone Ferraro

arxiv:2108.01663 v2 · 2021-08-03 · 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{NW7JK3US4WIR6BGVZU6B73X4IW}

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	2026-07-05T03:38:26.718411Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6dbe956e92e5911f04d5cd3c1feefc4594e79df7887c77cc036a540d62aec670

Aliases

arxiv: 2108.01663 · arxiv_version: 2108.01663v2 · doi: 10.48550/arxiv.2108.01663 · pith_short_12: NW7JK3US4WIR · pith_short_16: NW7JK3US4WIR6BGV · pith_short_8: NW7JK3US

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/NW7JK3US4WIR6BGVZU6B73X4IW \
  | 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: 6dbe956e92e5911f04d5cd3c1feefc4594e79df7887c77cc036a540d62aec670

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "81991d2df9727fa66f2ec0234dbae77c090ec9161f17c95b2f6abf04b1bc21de",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2021-08-03T17:59:47Z",
    "title_canon_sha256": "75168633a1d0f656484da7c306e0ecedbf1055ca2f18b2975cc707dc25ff3461"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2108.01663",
    "kind": "arxiv",
    "version": 2
  }
}