Pith Number

pith:FZRNGQW4

pith:2020:FZRNGQW4D67DARSJE22IZDARL4

not attested not anchored not stored refs pending

The first simultaneous measurement of Hubble constant and post-Newtonian parameter from Time-Delay Strong Lensing

Bin Hu, Simon Birrer, Tao Yang

arxiv:2003.03277 v2 · 2020-03-06 · astro-ph.CO · astro-ph.GA · astro-ph.IM · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FZRNGQW4D67DARSJE22IZDARL4}

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	2026-07-05T01:16:46.059595Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2e62d342dc1fbe30464926b48c8c115f068da4deea813cb28b5efd4579ddff9b

Aliases

arxiv: 2003.03277 · arxiv_version: 2003.03277v2 · doi: 10.48550/arxiv.2003.03277 · pith_short_12: FZRNGQW4D67D · pith_short_16: FZRNGQW4D67DARSJ · pith_short_8: FZRNGQW4

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/FZRNGQW4D67DARSJE22IZDARL4 \
  | 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: 2e62d342dc1fbe30464926b48c8c115f068da4deea813cb28b5efd4579ddff9b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c380e9cec1c6ba6d8c9052acc660f33dc135df2a5ed382b79b7d0f6550835052",
    "cross_cats_sorted": [
      "astro-ph.GA",
      "astro-ph.IM",
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2020-03-06T15:28:36Z",
    "title_canon_sha256": "44b257897ef068c01face9f54902ed38f22c76412a7f9573a1954a167ea0959e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2003.03277",
    "kind": "arxiv",
    "version": 2
  }
}