Pith Number

pith:RY4QRFV3

pith:2018:RY4QRFV37YNHALLS6UTD3EDNJZ

not attested not anchored not stored refs pending

Discovery of Six Optical Phase Curves with K2

Avi Shporer, Dilovan Serindag, Fei Dai, Ismael Mireles, Julien de Wit, Prajwal Niraula, Seth Redfield

arxiv:1812.09227 v2 · 2018-12-21 · 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{RY4QRFV37YNHALLS6UTD3EDNJZ}

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	2026-05-17T23:51:52.189571Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8e390896bbfe1a702d72f5263d906d4e507a9f959730abc26c2be9328e893d96

Aliases

arxiv: 1812.09227 · arxiv_version: 1812.09227v2 · doi: 10.48550/arxiv.1812.09227 · pith_short_12: RY4QRFV37YNH · pith_short_16: RY4QRFV37YNHALLS · pith_short_8: RY4QRFV3

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/RY4QRFV37YNHALLS6UTD3EDNJZ \
  | 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: 8e390896bbfe1a702d72f5263d906d4e507a9f959730abc26c2be9328e893d96

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6ccd1a0b6a999f2c12a1ead233578233410568bdd6ef3d2c95c709834e8afaa2",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2018-12-21T16:14:11Z",
    "title_canon_sha256": "0178d9dcb10c029345083079c25c2012ddeabd6cd36e77ce68cf4bf821529a8f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.09227",
    "kind": "arxiv",
    "version": 2
  }
}