Pith Number

pith:5NP4VL4R

pith:2020:5NP4VL4RVVJFBVOWRVY6BHOGWB

not attested not anchored not stored refs pending

Jupyter Notebooks on GitHub: Characteristics and Code Clones

Malin K\"all\'en, Tobias Wrigstad

arxiv:2007.10146 v2 · 2020-07-20 · cs.SE · cs.PL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5NP4VL4RVVJFBVOWRVY6BHOGWB}

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.

Cited by

1 paper in Pith

Observing Fine-Grained Changes in Jupyter Notebooks During Development Time

Receipt and verification

First computed	2026-07-05T02:18:53.929080Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

eb5fcaaf91ad5250d5d68d71e09dc6b07b4bb6495cdaf74cc9436aadbe789a02

Aliases

arxiv: 2007.10146 · arxiv_version: 2007.10146v2 · doi: 10.48550/arxiv.2007.10146 · pith_short_12: 5NP4VL4RVVJF · pith_short_16: 5NP4VL4RVVJFBVOW · pith_short_8: 5NP4VL4R

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/5NP4VL4RVVJFBVOWRVY6BHOGWB \
  | 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: eb5fcaaf91ad5250d5d68d71e09dc6b07b4bb6495cdaf74cc9436aadbe789a02

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9238b4c2a02c0d7576ac74e11e6b8550bfc2b842566bc4ce8b7ca0c9f6d39c12",
    "cross_cats_sorted": [
      "cs.PL"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2020-07-20T14:19:10Z",
    "title_canon_sha256": "bd69e5f52a55aa513a52a64dfa1ab3b1c84fc963b74bfdc0d7abecdc4893ac8f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2007.10146",
    "kind": "arxiv",
    "version": 2
  }
}