Pith Number

pith:EIVNKBRK

pith:2018:EIVNKBRK57GD3SSFERF3CLKVJF

not attested not anchored not stored refs pending

Sourcerer's Apprentice and the study of code snippet migration

Abram Hindle, Baljeet Malhotra, Cheng Chen, Stephen Romansky

arxiv:1808.00106 v1 · 2018-07-31 · cs.SE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EIVNKBRK57GD3SSFERF3CLKVJF}

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	2026-05-18T00:09:08.778600Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

222ad5062aefcc3dca45244bb12d554978656384d46c31cbc5bd615477540194

Aliases

arxiv: 1808.00106 · arxiv_version: 1808.00106v1 · doi: 10.48550/arxiv.1808.00106 · pith_short_12: EIVNKBRK57GD · pith_short_16: EIVNKBRK57GD3SSF · pith_short_8: EIVNKBRK

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/EIVNKBRK57GD3SSFERF3CLKVJF \
  | 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: 222ad5062aefcc3dca45244bb12d554978656384d46c31cbc5bd615477540194

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6779c89c23791ed127ff0c51149ad3798061de0a365962ae81dd4ae5dd1d5142",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2018-07-31T23:12:45Z",
    "title_canon_sha256": "65e30e4e4b007c4573f3da3324fb133498d45f6cfbb20e0381a502ebbb468d69"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.00106",
    "kind": "arxiv",
    "version": 1
  }
}