Pith Number

pith:U2APB6ZM

pith:2025:U2APB6ZMPN4P7LKHWYJCVMA5VX

not attested not anchored not stored refs pending

Exoplanet Ephemerides Change Observations (ExoEcho). II. Transit timing variation analysis of Brown Dwarfs around Solar-type Stars

Bo Ma, Cong Yu, Shangfei Liu, Wenqin Wang, Xinyue Ma, Zhangliang Chen

arxiv:2505.21270 v1 · 2025-05-27 · astro-ph.EP · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{U2APB6ZMPN4P7LKHWYJCVMA5VX}

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	2026-07-05T11:10:39.603277Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a680f0fb2c7b78ffad47b6122ab01dadf3c7f2582b3d25b58310284df743430f

Aliases

arxiv: 2505.21270 · arxiv_version: 2505.21270v1 · doi: 10.48550/arxiv.2505.21270 · pith_short_12: U2APB6ZMPN4P · pith_short_16: U2APB6ZMPN4P7LKH · pith_short_8: U2APB6ZM

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/U2APB6ZMPN4P7LKHWYJCVMA5VX \
  | 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: a680f0fb2c7b78ffad47b6122ab01dadf3c7f2582b3d25b58310284df743430f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "57afdcc511b4eacd65bd7d8b700530d42d28a9fe3239a10c96052e04ed6343c9",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2025-05-27T14:43:29Z",
    "title_canon_sha256": "5753147057457328cb95176120281b40e73045bf0b86892c089d30cfba876abc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2505.21270",
    "kind": "arxiv",
    "version": 1
  }
}