Pith Number

pith:DDYBOP2M

pith:2017:DDYBOP2MDU7ZKVC7YJANTH37FX

not attested not anchored not stored refs pending

OpenCluster: A Flexible Distributed Computing Framework for Astronomical Data Processing

Bo Liang, Congming Shi, Cuiyin Liu, Feng Wang, Hui Deng, Jingping Wu, Shoulin Wei, Wei Dai, Yingbo Liu, Ying Mei

arxiv:1701.04907 v1 · 2017-01-18 · astro-ph.IM · cs.DC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DDYBOP2MDU7ZKVC7YJANTH37FX}

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	2026-05-18T00:52:12.755699Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

18f0173f4c1d3f95545fc240d99f7f2dd8d61a2d48d86f6e09b9c883873d15a9

Aliases

arxiv: 1701.04907 · arxiv_version: 1701.04907v1 · doi: 10.48550/arxiv.1701.04907 · pith_short_12: DDYBOP2MDU7Z · pith_short_16: DDYBOP2MDU7ZKVC7 · pith_short_8: DDYBOP2M

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/DDYBOP2MDU7ZKVC7YJANTH37FX \
  | 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: 18f0173f4c1d3f95545fc240d99f7f2dd8d61a2d48d86f6e09b9c883873d15a9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "86004c302c1f4501867674a1002fdf54ada36fd9aeaf90875407755234206eac",
    "cross_cats_sorted": [
      "cs.DC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2017-01-18T00:26:32Z",
    "title_canon_sha256": "3d32ca70e2d4bd5cd8811e0f0bc0cbd066f8e153b6d4d70fb08b4da9d0824128"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1701.04907",
    "kind": "arxiv",
    "version": 1
  }
}