Pith Number

pith:5Z53FJ7E

pith:2025:5Z53FJ7EL2BLZ4OZQRSXVEKQMT

not attested not anchored not stored refs pending

Ground-Based Verification Method for Pointing and Acquisition Performance of Space Optical Communication System with Sub-Second Acquisition Time

Bin Li, Haochun Gao, Jianmin Wang, Weiran Zheng, Zhiqian Su

arxiv:2508.08950 v1 · 2025-08-12 · physics.optics

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5Z53FJ7EL2BLZ4OZQRSXVEKQMT}

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	2026-07-05T11:52:37.310865Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ee7bb2a7e45e82bcf1d984657a915064ee4ef761532dfe138ca7c7f99024c979

Aliases

arxiv: 2508.08950 · arxiv_version: 2508.08950v1 · doi: 10.48550/arxiv.2508.08950 · pith_short_12: 5Z53FJ7EL2BL · pith_short_16: 5Z53FJ7EL2BLZ4OZ · pith_short_8: 5Z53FJ7E

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/5Z53FJ7EL2BLZ4OZQRSXVEKQMT \
  | 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: ee7bb2a7e45e82bcf1d984657a915064ee4ef761532dfe138ca7c7f99024c979

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5144b1ebc85f1a74d2c4f42e7a1743516383dda0fd96f2f9dd26ce56b68705b5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2025-08-12T14:05:56Z",
    "title_canon_sha256": "c5261b75c16522189633bcfa910248b5914b98345f4904327836ef5d774c761e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2508.08950",
    "kind": "arxiv",
    "version": 1
  }
}