Pith Number

pith:QBI2NH4J

pith:2018:QBI2NH4JR2OCLAD5WN6O4TFRNJ

not attested not anchored not stored refs pending

Maximum Angular Separation Epochs for Exoplanet Imaging Observations

Margaret C. Turnbull, Stephen R. Kane, Tiffany Meshkat

arxiv:1810.07328 v2 · 2018-10-17 · 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{QBI2NH4JR2OCLAD5WN6O4TFRNJ}

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	2026-05-17T23:59:48.980942Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8051a69f898e9c25807db37cee4cb16a646d9367e0227fd43fd4a6192dd934ba

Aliases

arxiv: 1810.07328 · arxiv_version: 1810.07328v2 · doi: 10.48550/arxiv.1810.07328 · pith_short_12: QBI2NH4JR2OC · pith_short_16: QBI2NH4JR2OCLAD5 · pith_short_8: QBI2NH4J

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/QBI2NH4JR2OCLAD5WN6O4TFRNJ \
  | 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: 8051a69f898e9c25807db37cee4cb16a646d9367e0227fd43fd4a6192dd934ba

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c9c3e19e122e0daf7a43fa74807c60c48cc5fb90c7b4e4c990d0063f142be501",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2018-10-17T00:28:56Z",
    "title_canon_sha256": "d4e7fc782615dab61786938e8d0c8b7c4dc590b58a9b2c32a907f605566cb839"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.07328",
    "kind": "arxiv",
    "version": 2
  }
}