Pith Number

pith:BPLK64OL

pith:2021:BPLK64OLCW6AIJWSKOWJ2SD2C4

not attested not anchored not stored refs pending

Characterizing the WASP-4 system with TESS and radial velocity data: Constraints on the cause of the hot Jupiter's changing orbit and evidence of an outer planet

Andrew Ridden-Harper, Jake D. Turner, Laura Flagg, Ray Jayawardhana

arxiv:2112.09621 v1 · 2021-12-17 · astro-ph.EP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BPLK64OLCW6AIJWSKOWJ2SD2C4}

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	2026-07-05T04:25:50.980915Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0bd6af71cb15bc0426d253ac9d487a173e15e77177362477156995f40e999337

Aliases

arxiv: 2112.09621 · arxiv_version: 2112.09621v1 · doi: 10.48550/arxiv.2112.09621 · pith_short_12: BPLK64OLCW6A · pith_short_16: BPLK64OLCW6AIJWS · pith_short_8: BPLK64OL

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/BPLK64OLCW6AIJWSKOWJ2SD2C4 \
  | 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: 0bd6af71cb15bc0426d253ac9d487a173e15e77177362477156995f40e999337

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "70d9982b9051884c5b0290a98771f1df7886f59ce74c1717d422a008e3b13191",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2021-12-17T16:48:40Z",
    "title_canon_sha256": "2b81d56af34d0211924671dd60a1c8dbe89c70d1bc4a9046ab92dea549beac57"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2112.09621",
    "kind": "arxiv",
    "version": 1
  }
}