Pith Number

pith:DJSUB5WU

pith:2008:DJSUB5WUH2KFWXRE7PHBEUIVLA

not attested not anchored not stored refs pending

Impact of modulation on CMB B-mode polarization experiments

Anthony Challinor, Bradley R. Johnson, Chris E. North, Daniel O'Dea, David Sutton, Michael L. Brown

arxiv:0809.4032 v2 · 2008-09-24 · astro-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{DJSUB5WUH2KFWXRE7PHBEUIVLA}

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	2026-05-18T02:15:33.883970Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1a6540f6d43e945b5e24fbce125115580affeb7d009d6bc5deddd24c3f7f9c6c

Aliases

arxiv: 0809.4032 · arxiv_version: 0809.4032v2 · doi: 10.48550/arxiv.0809.4032 · pith_short_12: DJSUB5WUH2KF · pith_short_16: DJSUB5WUH2KFWXRE · pith_short_8: DJSUB5WU

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/DJSUB5WUH2KFWXRE7PHBEUIVLA \
  | 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: 1a6540f6d43e945b5e24fbce125115580affeb7d009d6bc5deddd24c3f7f9c6c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f98db95f927505337f92d716f01b57904433b03111e9408d66a66fb8738e2e0e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-09-24T08:17:20Z",
    "title_canon_sha256": "3bc9b5db4839cf7f3ffbdb70cde4daaef2a8dec661171db2b7d396f8409886a9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0809.4032",
    "kind": "arxiv",
    "version": 2
  }
}