Pith Number

pith:K4FH56NL

pith:2017:K4FH56NLE5PSN3NZ4PTVB535NX

not attested not anchored not stored refs pending

Rotational Spectral Unmixing of Exoplanets: Degeneracies between Surface Colors and Geography

Jacob Lustig-Yaeger, Nicolas B. Cowan, Yuka Fujii

arxiv:1708.04886 v2 · 2017-08-16 · 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{K4FH56NLE5PSN3NZ4PTVB535NX}

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	2026-05-18T00:31:50.589451Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

570a7ef9ab275f26edb9e3e750f77d6ded7ba7209fd85ad0b00ca09ec760216f

Aliases

arxiv: 1708.04886 · arxiv_version: 1708.04886v2 · doi: 10.48550/arxiv.1708.04886 · pith_short_12: K4FH56NLE5PS · pith_short_16: K4FH56NLE5PSN3NZ · pith_short_8: K4FH56NL

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/K4FH56NLE5PSN3NZ4PTVB535NX \
  | 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: 570a7ef9ab275f26edb9e3e750f77d6ded7ba7209fd85ad0b00ca09ec760216f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "18d8834dc68b309428660aee2e1857f122826466489ff04f767c8cb44864c720",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2017-08-16T13:27:51Z",
    "title_canon_sha256": "8d4401b1504f5f50cc954901fcaa22e2bec87400b150b65b79d5ce65c5e88e5a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1708.04886",
    "kind": "arxiv",
    "version": 2
  }
}