Pith Number

pith:XSOUBHQP

pith:2021:XSOUBHQPTDM64V5AF3A6B52FBX

not attested not anchored not stored refs pending

Green Bank Telescope: Overview and analysis of metrology systems and pointing performance

D. Egan, D. T. Frayer, E. White, F. D. Ghigo, J. D. Nelson, J. J. Brandt, J. Ray, P. T. Wallace, R. J. Maddalena, R. M. Prestage

arxiv:2111.12636 v1 · 2021-11-24 · 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{XSOUBHQPTDM64V5AF3A6B52FBX}

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	2026-07-05T04:05:14.879400Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bc9d409e0f98d9ee57a02ec1e0f7450df23785c38a37c1f60f3a084680b79a5d

Aliases

arxiv: 2111.12636 · arxiv_version: 2111.12636v1 · doi: 10.48550/arxiv.2111.12636 · pith_short_12: XSOUBHQPTDM6 · pith_short_16: XSOUBHQPTDM64V5A · pith_short_8: XSOUBHQP

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/XSOUBHQPTDM64V5AF3A6B52FBX \
  | 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: bc9d409e0f98d9ee57a02ec1e0f7450df23785c38a37c1f60f3a084680b79a5d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "589ea5aed94470d17b7557184fab53b583bb78c9b66ba2c756b4a9dc4cbb8fab",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2021-11-24T17:16:06Z",
    "title_canon_sha256": "fa73b8c5eed0fa6b7548c4857058ee78c6bb3d2fa216e67ec05845eefac9f39a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2111.12636",
    "kind": "arxiv",
    "version": 1
  }
}