Pith Number

pith:UGK63AGY

pith:2019:UGK63AGY6ZDHSGQW5NBMIKOQK3

not attested not anchored not stored refs pending

Combining gravitational and electromagnetic waves observations to investigate local structure and the Hubble tension

Antonio Enea Romano, Brayan Yamid Del Valle Mazo, Maryi Alejandra Carvajal Quintero

arxiv:1912.12465 v4 · 2019-12-28 · gr-qc · 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{UGK63AGY6ZDHSGQW5NBMIKOQK3}

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	2026-07-05T02:50:38.006990Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a195ed80d8f646791a16eb42c429d056c13e6072341d36a0bb5ca424bb9286c0

Aliases

arxiv: 1912.12465 · arxiv_version: 1912.12465v4 · doi: 10.48550/arxiv.1912.12465 · pith_short_12: UGK63AGY6ZDH · pith_short_16: UGK63AGY6ZDHSGQW · pith_short_8: UGK63AGY

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/UGK63AGY6ZDHSGQW5NBMIKOQK3 \
  | 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: a195ed80d8f646791a16eb42c429d056c13e6072341d36a0bb5ca424bb9286c0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6efbd45bfcc2c2907bb00669ecf0e4cafb9f08907ef97dfbcc324ddab29d2468",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2019-12-28T14:46:52Z",
    "title_canon_sha256": "660fec3b7d256b5615b4b1ac3307e64b50e2ddf303c6521552fc4de243e50f90"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1912.12465",
    "kind": "arxiv",
    "version": 4
  }
}