Pith Number

pith:M77USQKT

pith:2021:M77USQKTJ5C6K6HSRJJI3CFN7E

not attested not anchored not stored refs pending

Automating the Removal of Obsolete TODO Comments

David Lo, John Grundy, Thomas Zimmermann, Xin Xia, Zhipeng Gao

arxiv:2108.05846 v1 · 2021-08-12 · 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{M77USQKTJ5C6K6HSRJJI3CFN7E}

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	2026-07-05T03:05:18.484335Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

67ff4941534f45e578f28a528d88adf9065eb2dbba2da1bece5b2d87f3bd9a54

Aliases

arxiv: 2108.05846 · arxiv_version: 2108.05846v1 · doi: 10.48550/arxiv.2108.05846 · pith_short_12: M77USQKTJ5C6 · pith_short_16: M77USQKTJ5C6K6HS · pith_short_8: M77USQKT

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/M77USQKTJ5C6K6HSRJJI3CFN7E \
  | 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: 67ff4941534f45e578f28a528d88adf9065eb2dbba2da1bece5b2d87f3bd9a54

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5922192fe7ba0733363d1b0585e214bdd62277a66968d493d93e53cf6d945903",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2021-08-12T16:51:56Z",
    "title_canon_sha256": "83c76e1718c23b69d800d91cf03b1fe4e22c6aa920415c229a0c8a1366755c3e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2108.05846",
    "kind": "arxiv",
    "version": 1
  }
}