Pith Number

pith:I4EUIK5L

pith:2021:I4EUIK5LVT5GMW7B25QZ4GTPWK

not attested not anchored not stored refs pending

ZTFJ0038+2030: a long period eclipsing white dwarf and a substellar companion

Andrew Drake, Ashish A. Mahabal, David L. Shupe, Eric C. Bellm, Jan van Roestel, Keaton J. Bell, Kevin Burdge, Kyung Min Shin, Michael Porter, Przemek Mr\'oz, Reed Riddle, Richard Dekany, Thomas A. Prince, Thomas Kupfer

arxiv:2105.08687 v1 · 2021-05-18 · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{I4EUIK5LVT5GMW7B25QZ4GTPWK}

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	2026-07-05T03:21:49.089563Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4709442babacfa665be1d7619e1a6fb29b20da9cc2d0ae964009db5261803507

Aliases

arxiv: 2105.08687 · arxiv_version: 2105.08687v1 · doi: 10.48550/arxiv.2105.08687 · pith_short_12: I4EUIK5LVT5G · pith_short_16: I4EUIK5LVT5GMW7B · pith_short_8: I4EUIK5L

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/I4EUIK5LVT5GMW7B25QZ4GTPWK \
  | 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: 4709442babacfa665be1d7619e1a6fb29b20da9cc2d0ae964009db5261803507

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5f6d345dcea0e791e1de7a450f921f75ea9d0859ed2d9421c1f0720ef783cf74",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2021-05-18T17:16:49Z",
    "title_canon_sha256": "587ab6813ba3ceb0fd5a162b1e5528b0d2f114e7b6166a6e0d029ac41a306bcb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2105.08687",
    "kind": "arxiv",
    "version": 1
  }
}