Pith Number

pith:KM2LK5OU

pith:2020:KM2LK5OU7LDOIVKDFGNDFTGDV3

not attested not anchored not stored refs pending

Determining the Hubble Constant without the Sound Horizon Scale: Measurements from CMB Lensing

Blake D. Sherwin, Eric J. Baxter

arxiv:2007.04007 v2 · 2020-07-08 · 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{KM2LK5OU7LDOIVKDFGNDFTGDV3}

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	2026-07-05T02:07:03.786488Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5334b575d4fac6e45543299a32ccc3aecec7b3509a292f4687787284410fd8b6

Aliases

arxiv: 2007.04007 · arxiv_version: 2007.04007v2 · doi: 10.48550/arxiv.2007.04007 · pith_short_12: KM2LK5OU7LDO · pith_short_16: KM2LK5OU7LDOIVKD · pith_short_8: KM2LK5OU

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/KM2LK5OU7LDOIVKDFGNDFTGDV3 \
  | 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: 5334b575d4fac6e45543299a32ccc3aecec7b3509a292f4687787284410fd8b6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "da66f1ce601c642efbd0bd10d623eb5c8b7821e0c73be1de08aae2f819fee45d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2020-07-08T10:24:01Z",
    "title_canon_sha256": "d6a4dd1b31125cae6ab4f1aca75ae7f2f59dff6689a5bf523d06ef65bcccfed6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2007.04007",
    "kind": "arxiv",
    "version": 2
  }
}