Pith Number

pith:YK5XLBBX

pith:2014:YK5XLBBX53TUGJCBGQUVV6I7IP

not attested not anchored not stored refs pending

Hint of relic gravitational waves in the Planck and WMAP data

Cheng cheng, Qing-Guo Huang, Wen Zhao

arxiv:1403.3919 v2 · 2014-03-16 · astro-ph.CO · gr-qc · hep-ph · hep-th

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YK5XLBBX53TUGJCBGQUVV6I7IP}

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	2026-05-18T02:56:04.838736Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c2bb758437eee743244134295af91f43efbc7def593b6b90feb419e9f0ff2757

Aliases

arxiv: 1403.3919 · arxiv_version: 1403.3919v2 · doi: 10.48550/arxiv.1403.3919 · pith_short_12: YK5XLBBX53TU · pith_short_16: YK5XLBBX53TUGJCB · pith_short_8: YK5XLBBX

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/YK5XLBBX53TUGJCBGQUVV6I7IP \
  | 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: c2bb758437eee743244134295af91f43efbc7def593b6b90feb419e9f0ff2757

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2de106337ef037e037f0196f413096df67c125d71c3fa185c5900544df6de2df",
    "cross_cats_sorted": [
      "gr-qc",
      "hep-ph",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2014-03-16T14:27:53Z",
    "title_canon_sha256": "f2d903e78f53a7ebaaa6f82413a371becd86902469d89d5b71b81053dab88e3c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1403.3919",
    "kind": "arxiv",
    "version": 2
  }
}