Pith Number

pith:4D5E7P2S

pith:2026:4D5E7P2SGW5JNL3337FZOCFZTZ

not attested not anchored not stored refs pending

Veiled in Starlight: Impacts of Stellar Contamination on Retrievals of TRAPPIST-1f's Atmospheric Composition

Elijah Mullens, Harper Rosenthal, Lisa Kaltenegger, Rebecca Payne, Ryan J. MacDonald

arxiv:2608.06207 v1 · 2026-08-06 · astro-ph.EP · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4D5E7P2SGW5JNL3337FZOCFZTZ}

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	2026-08-07T01:40:56.618625Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e0fa4fbf5235ba96af7bdfcb9708b99e637ef060f82121304a8e30ce954e1f68

Aliases

arxiv: 2608.06207 · arxiv_version: 2608.06207v1 · doi: 10.48550/arxiv.2608.06207 · pith_short_12: 4D5E7P2SGW5J · pith_short_16: 4D5E7P2SGW5JNL33 · pith_short_8: 4D5E7P2S

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/4D5E7P2SGW5JNL3337FZOCFZTZ \
  | 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: e0fa4fbf5235ba96af7bdfcb9708b99e637ef060f82121304a8e30ce954e1f68

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ca644ce13dcd7a97676cf79ddc9b8ec9c75419385d9040924bae97e2b1d26419",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2026-08-06T16:01:11Z",
    "title_canon_sha256": "316fdbb534a0ef78d0bca64c79f9ce2db5e0f8b12fd3eee9cac217b455111213"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2608.06207",
    "kind": "arxiv",
    "version": 1
  }
}