Pith Number

pith:SPJSPJXQ

pith:2018:SPJSPJXQWLMLYHKYWWWOBYEP7R

not attested not anchored not stored refs pending

Exoplanet Atmosphere Measurements from Direct Imaging

Beth A. Biller, Micka\"el Bonnefoy

arxiv:1807.05136 v1 · 2018-07-13 · astro-ph.EP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SPJSPJXQWLMLYHKYWWWOBYEP7R}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-17T23:59:15.013903Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

93d327a6f0b2d8bc1d58b5ace0e08ffc5c8fca81b907524e7098898225e57a39

Aliases

arxiv: 1807.05136 · arxiv_version: 1807.05136v1 · doi: 10.48550/arxiv.1807.05136 · pith_short_12: SPJSPJXQWLML · pith_short_16: SPJSPJXQWLMLYHKY · pith_short_8: SPJSPJXQ

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/SPJSPJXQWLMLYHKYWWWOBYEP7R \
  | 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: 93d327a6f0b2d8bc1d58b5ace0e08ffc5c8fca81b907524e7098898225e57a39

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5a2ffa62925b813936efe02f8f5a6ed8635c3f5aa8e5fdd5b87ad5b60ff3c718",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2018-07-13T15:26:51Z",
    "title_canon_sha256": "4dce397c54abe3502a869947fa28c3bccb47a921ab6964cd8f22030edc634a24"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.05136",
    "kind": "arxiv",
    "version": 1
  }
}