Pith Number

pith:QW7COING

pith:2023:QW7COING22TVUTO5AHI3XU6U3X

not attested not anchored not stored refs pending

BlueWalker 3 Satellite Brightness Characterized and Modeled

Anthony Mallama, Cees Bassa, Richard E. Cole, Scott Harrington, Scott Tilley

arxiv:2305.00831 v1 · 2023-05-01 · 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{QW7COING22TVUTO5AHI3XU6U3X}

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

Initial Observations of the First BlueBird Spacecraft and a Model of Their Brightness

Receipt and verification

First computed	2026-07-05T06:05:45.687396Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

85be2721a6d6a75a4ddd01d1bbd3d4ddd7f4116687f70f0d17db7b378a633cff

Aliases

arxiv: 2305.00831 · arxiv_version: 2305.00831v1 · doi: 10.48550/arxiv.2305.00831 · pith_short_12: QW7COING22TV · pith_short_16: QW7COING22TVUTO5 · pith_short_8: QW7COING

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/QW7COING22TVUTO5AHI3XU6U3X \
  | 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: 85be2721a6d6a75a4ddd01d1bbd3d4ddd7f4116687f70f0d17db7b378a633cff

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4e157aea8c71851ddd860b987fc074e6e8b42b2471fe7238600b5f03ffd6b6c0",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2023-05-01T13:59:32Z",
    "title_canon_sha256": "612ba2f1057ef4134f85852c6f18a150e8bc0be029a69940faedd66653c9d97a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2305.00831",
    "kind": "arxiv",
    "version": 1
  }
}