Pith Number

pith:XVTHE5XX

pith:2009:XVTHE5XXB5JGXDJMFZBUBBU6MP

not attested not anchored not stored refs pending

B-mode Detection with an Extended Planck Mission

George Efstathiou, Steven Gratton

arxiv:0903.0345 v1 · 2009-03-02 · 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{XVTHE5XXB5JGXDJMFZBUBBU6MP}

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	2026-05-18T02:14:37.783764Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bd667276f70f526b8d2c2e4340869e63d5e0eb575b96b714524084c075da79c7

Aliases

arxiv: 0903.0345 · arxiv_version: 0903.0345v1 · doi: 10.48550/arxiv.0903.0345 · pith_short_12: XVTHE5XXB5JG · pith_short_16: XVTHE5XXB5JGXDJM · pith_short_8: XVTHE5XX

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/XVTHE5XXB5JGXDJMFZBUBBU6MP \
  | 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: bd667276f70f526b8d2c2e4340869e63d5e0eb575b96b714524084c075da79c7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c134b4aea585a703146ad38075d961f4fcb3e3a6b8f770a3ae65654b1102022a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-03-02T17:55:57Z",
    "title_canon_sha256": "6968521ec11df3a7081206d817297d177e76b68e89f826b249599fc9984a5e42"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0903.0345",
    "kind": "arxiv",
    "version": 1
  }
}