Pith Number

pith:X7RMXHCX

pith:2019:X7RMXHCXDKHBN2CYWSZPL37XMN

not attested not anchored not stored refs pending

Constraints on the small scale curvature perturbation using Planck-2015 data

Yupeng Yang

arxiv:1904.09104 v1 · 2019-04-19 · 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{X7RMXHCXDKHBN2CYWSZPL37XMN}

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	2026-05-17T23:46:52.399461Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bfe2cb9c571a8e16e858b4b2f5eff763623402415c2e918d1ce7c4a860930719

Aliases

arxiv: 1904.09104 · arxiv_version: 1904.09104v1 · doi: 10.48550/arxiv.1904.09104 · pith_short_12: X7RMXHCXDKHB · pith_short_16: X7RMXHCXDKHBN2CY · pith_short_8: X7RMXHCX

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/X7RMXHCXDKHBN2CYWSZPL37XMN \
  | 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: bfe2cb9c571a8e16e858b4b2f5eff763623402415c2e918d1ce7c4a860930719

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ba44981bec6b541e24db9bcc2cd30d0311ae1431eb1cf38e5255074afdf44417",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2019-04-19T07:37:04Z",
    "title_canon_sha256": "7334da48106cd20c9fa978a652d7a9b650838442301c0dde622afa846b909b94"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.09104",
    "kind": "arxiv",
    "version": 1
  }
}