Pith Number

pith:GVVATAWP

pith:2021:GVVATAWPKA74YVJK6NRPMPYH3K

not attested not anchored not stored refs pending

Plaskett 1.8 metre Observations of Starlink Satellites

Aaron C. Boley, Dave Balam, Ewan Wright, Paul Hickson, Samantha Lawler

arxiv:2109.12494 v1 · 2021-09-26 · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GVVATAWPKA74YVJK6NRPMPYH3K}

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.

Cited by

1 paper in Pith

Rings in the Sky: Orbital Data Centres and Potential Impacts to Astronomy and the Sky

Receipt and verification

First computed	2026-07-05T04:14:18.350632Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

356a0982cf503fcc552af362f63f07daa249c2b005e0b8bdacf84f3511b6014d

Aliases

arxiv: 2109.12494 · arxiv_version: 2109.12494v1 · doi: 10.48550/arxiv.2109.12494 · pith_short_12: GVVATAWPKA74 · pith_short_16: GVVATAWPKA74YVJK · pith_short_8: GVVATAWP

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/GVVATAWPKA74YVJK6NRPMPYH3K \
  | 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: 356a0982cf503fcc552af362f63f07daa249c2b005e0b8bdacf84f3511b6014d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5449781a74fc108e7cb0064f3d9c39e3ff67ce1942fcec4d5de28e1e86782509",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2021-09-26T05:08:28Z",
    "title_canon_sha256": "a6627cebb14ec6654da92c506e23eb2499648da4255760a54ba67340a02f5217"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2109.12494",
    "kind": "arxiv",
    "version": 1
  }
}