Pith Number

pith:FQRR5X7L

pith:2015:FQRR5X7L3JHBJN5ADE2UYQ3F32

not attested not anchored not stored refs pending

Scientific Computing Meets Big Data Technology: An Astronomy Use Case

David A. Patterson, Evan Sparks, Frank Austin Nothaft, Kyle Barbary, Michael J. Franklin, Oliver Zahn, Saul Perlmutter, Zhao Zhang

arxiv:1507.03325 v2 · 2015-07-13 · 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{FQRR5X7L3JHBJN5ADE2UYQ3F32}

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	2026-05-18T01:19:12.011149Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2c231edfebda4e14b7a019354c4365de8728c6fbfc1a1fd12b46b0dce3f30431

Aliases

arxiv: 1507.03325 · arxiv_version: 1507.03325v2 · doi: 10.48550/arxiv.1507.03325 · pith_short_12: FQRR5X7L3JHB · pith_short_16: FQRR5X7L3JHBJN5A · pith_short_8: FQRR5X7L

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/FQRR5X7L3JHBJN5ADE2UYQ3F32 \
  | 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: 2c231edfebda4e14b7a019354c4365de8728c6fbfc1a1fd12b46b0dce3f30431

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5e578ab498213b0f0e2d62df39585288485c726075d35a5cc89708f9b8c70858",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DC",
    "submitted_at": "2015-07-13T04:47:04Z",
    "title_canon_sha256": "331de92b37c74ddeb0f0e0a923be089f1a3aebd08474f853e61fea63bc5374e7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.03325",
    "kind": "arxiv",
    "version": 2
  }
}