Pith Number

pith:UH543ZXP

pith:2021:UH543ZXPLXRRRI7NJ5KVLTQVTE

not attested not anchored not stored refs pending

The Hubble Constant in the Axi-Higgs Universe

Hoang Nhan Luu, Leo WH Fung, Lingfeng Li, S.-H. Henry Tye, Tao Liu, Yu-Cheng Qiu

arxiv:2105.01631 v4 · 2021-05-04 · astro-ph.CO · astro-ph.GA · 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{UH543ZXPLXRRRI7NJ5KVLTQVTE}

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.

Cited by

1 paper in Pith

The Lifespan of our Universe

Receipt and verification

First computed	2026-07-05T06:46:29.079390Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a1fbcde6ef5de318a3ed4f5555ce15993bb4f0a8104f2e6d5582112165739627

Aliases

arxiv: 2105.01631 · arxiv_version: 2105.01631v4 · doi: 10.48550/arxiv.2105.01631 · pith_short_12: UH543ZXPLXRR · pith_short_16: UH543ZXPLXRRRI7N · pith_short_8: UH543ZXP

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/UH543ZXPLXRRRI7NJ5KVLTQVTE \
  | 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: a1fbcde6ef5de318a3ed4f5555ce15993bb4f0a8104f2e6d5582112165739627

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "95db2071a2370822383ebb3ded3973bf2667942fcd8e3315dc7d60dd44e2782e",
    "cross_cats_sorted": [
      "astro-ph.GA",
      "hep-ph",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2021-05-04T17:17:23Z",
    "title_canon_sha256": "2003bc1371c1285d62f51abe414d72411a2659fd1ae5e32e7f844fe481fead41"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2105.01631",
    "kind": "arxiv",
    "version": 4
  }
}