Pith Number

pith:DGWVMYSY

pith:2009:DGWVMYSYT6UGMXT36ZBDEVV3DH

not attested not anchored not stored refs pending

A review of the stochastic background of gravitational waves in f(R) gravity with WMAP constrains

Christian Corda

arxiv:0901.1193 v2 · 2009-01-09 · 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{DGWVMYSYT6UGMXT36ZBDEVV3DH}

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	2026-05-18T04:14:27.686470Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

19ad5662589fa8665e7bf6423256bb19f22c8a28fe1e97f446747a7706b814a1

Aliases

arxiv: 0901.1193 · arxiv_version: 0901.1193v2 · doi: 10.48550/arxiv.0901.1193 · pith_short_12: DGWVMYSYT6UG · pith_short_16: DGWVMYSYT6UGMXT3 · pith_short_8: DGWVMYSY

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/DGWVMYSYT6UGMXT36ZBDEVV3DH \
  | 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: 19ad5662589fa8665e7bf6423256bb19f22c8a28fe1e97f446747a7706b814a1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e68b9979259b22e4559c1f7577695a48e776cbd4580c7f08339290d07dcb18de",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-01-09T09:25:59Z",
    "title_canon_sha256": "5f7c366669c031ff479d46096ed20034b12a385cf2aa1fee7bf68c63a4a60efc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0901.1193",
    "kind": "arxiv",
    "version": 2
  }
}