Pith Number

pith:X5BMB5O5

pith:2019:X5BMB5O5BIOPDM4LUJ4NTJBZYK

not attested not anchored not stored refs pending

The constraint ability of Hubble parameter by gravitational wave standard sirens on cosmological parameters

Bao-Quan Wang, Hao-Yi Wan, Ting-Ting Zhang, Tong-Jie Zhang, Yang Liu, Zhi-E Liu

arxiv:1910.11157 v1 · 2019-10-23 · 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{X5BMB5O5BIOPDM4LUJ4NTJBZYK}

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	2026-07-05T00:18:41.746689Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bf42c0f5dd0a1cf1b38ba278d9a439c2b14a0bd4f3792540361c5e5bbdaa4542

Aliases

arxiv: 1910.11157 · arxiv_version: 1910.11157v1 · doi: 10.48550/arxiv.1910.11157 · pith_short_12: X5BMB5O5BIOP · pith_short_16: X5BMB5O5BIOPDM4L · pith_short_8: X5BMB5O5

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/X5BMB5O5BIOPDM4LUJ4NTJBZYK \
  | 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: bf42c0f5dd0a1cf1b38ba278d9a439c2b14a0bd4f3792540361c5e5bbdaa4542

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "64169a33958d430ac5ac9fd70e934bc385790964b309ab5c8c123d81cdb095cf",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2019-10-23T08:25:05Z",
    "title_canon_sha256": "37f0e123f3a5a83a5dfb121fe5d2a865789577b0fb5490b2fddfd84f5e86023b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1910.11157",
    "kind": "arxiv",
    "version": 1
  }
}