Pith Number

pith:XH5ZXQCU

pith:2020:XH5ZXQCUOXTG7TWPYBC7ECR4BT

not attested not anchored not stored refs pending

Confirmation of WASP-107b's extended Helium atmosphere with Keck II/NIRSPEC

James Kirk, Li Zeng, Mercedes Lopez-Morales, Munazza K. Alam

arxiv:2001.07667 v1 · 2020-01-21 · 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{XH5ZXQCUOXTG7TWPYBC7ECR4BT}

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	2026-07-05T00:45:21.047514Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b9fb9bc05475e66fcecfc045f20a3c0cfb22da89e2bab912d853ff0c78fea79e

Aliases

arxiv: 2001.07667 · arxiv_version: 2001.07667v1 · doi: 10.48550/arxiv.2001.07667 · pith_short_12: XH5ZXQCUOXTG · pith_short_16: XH5ZXQCUOXTG7TWP · pith_short_8: XH5ZXQCU

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/XH5ZXQCUOXTG7TWPYBC7ECR4BT \
  | 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: b9fb9bc05475e66fcecfc045f20a3c0cfb22da89e2bab912d853ff0c78fea79e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c9f925f5a58b6bd2ad8b4f56851d99148215f6d2ca9c60a10e106854a4b9412a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2020-01-21T17:42:02Z",
    "title_canon_sha256": "5aa4ff6a986c8209b7df4cd604c8b63b4ea900998bea88168e4a9c9048f9b790"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2001.07667",
    "kind": "arxiv",
    "version": 1
  }
}