Pith Number

pith:U72IDA4N

pith:2021:U72IDA4N7JFSVZ2KMRBQI5MLNX

not attested not anchored not stored refs pending

An Atomic Spectral Survey of WASP-76b: Resolving Chemical Gradients and Asymmetries

A. Sanchez-Lopez, Aurora Y. Kesseli, I.A.G. Snellen, N. Casasayas-Barris, P. Molliere

arxiv:2111.09916 v2 · 2021-11-18 · 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{U72IDA4N7JFSVZ2KMRBQI5MLNX}

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	2026-07-05T03:55:10.814883Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a7f481838dfa4b2ae74a644304758b6dd2c0241c831294732d2956a68011f507

Aliases

arxiv: 2111.09916 · arxiv_version: 2111.09916v2 · doi: 10.48550/arxiv.2111.09916 · pith_short_12: U72IDA4N7JFS · pith_short_16: U72IDA4N7JFSVZ2K · pith_short_8: U72IDA4N

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/U72IDA4N7JFSVZ2KMRBQI5MLNX \
  | 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: a7f481838dfa4b2ae74a644304758b6dd2c0241c831294732d2956a68011f507

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9f3603a9ff3509c3825ca0806a32db5383f6eba508621bf7fde5a81c7dd34d3a",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2021-11-18T19:21:00Z",
    "title_canon_sha256": "c5aeb90d2de7b7eac025b8af2d9b2ca5702aea76680572fb784f919e4e4e6394"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2111.09916",
    "kind": "arxiv",
    "version": 2
  }
}