Pith Number

pith:NPYPF7I7

pith:2019:NPYPF7I7BCF7RG63VPKA7GDN3K

not attested not anchored not stored refs pending

Stratum: A Serverless Framework for Lifecycle Management of Machine Learning based Data Analytics Tasks

Anirban Bhattacharjee, Aniruddha Gokhale, Shunxing Bao, Shweta Khare, Thomas Damiano, Yogesh Barve

arxiv:1904.01727 v1 · 2019-04-03 · cs.SE · cs.DC · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NPYPF7I7BCF7RG63VPKA7GDN3K}

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	2026-05-17T23:49:29.883039Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6bf0f2fd1f088bf89bdbabd40f986ddab08f84bc86d48203d30d668cdc1bcc91

Aliases

arxiv: 1904.01727 · arxiv_version: 1904.01727v1 · doi: 10.48550/arxiv.1904.01727 · pith_short_12: NPYPF7I7BCF7 · pith_short_16: NPYPF7I7BCF7RG63 · pith_short_8: NPYPF7I7

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/NPYPF7I7BCF7RG63VPKA7GDN3K \
  | 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: 6bf0f2fd1f088bf89bdbabd40f986ddab08f84bc86d48203d30d668cdc1bcc91

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "214dca7faf90c73df9789a3fc3bbe60f92aee33ca9bb54c28164a25f83f8cf92",
    "cross_cats_sorted": [
      "cs.DC",
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2019-04-03T01:07:04Z",
    "title_canon_sha256": "89002d2be89a284acfab3d1e6a1c3741797dd8641023086fedab2f49a2e95c4e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.01727",
    "kind": "arxiv",
    "version": 1
  }
}