Pith Number

pith:BTTTTFQW

pith:2019:BTTTTFQWBPJAYPZ5MICJQAAHGG

not attested not anchored not stored refs pending

Mull it over: mutation testing based on LLVM

Alex Denisov, Stanislav Pankevich

arxiv:1908.01540 v1 · 2019-08-05 · 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{BTTTTFQWBPJAYPZ5MICJQAAHGG}

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	2026-07-04T23:51:31.265397Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0ce73996160bd20c3f3d62049800073181af3207fc8693aeca882bdfdbb73ebe

Aliases

arxiv: 1908.01540 · arxiv_version: 1908.01540v1 · doi: 10.48550/arxiv.1908.01540 · pith_short_12: BTTTTFQWBPJA · pith_short_16: BTTTTFQWBPJAYPZ5 · pith_short_8: BTTTTFQW

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/BTTTTFQWBPJAYPZ5MICJQAAHGG \
  | 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: 0ce73996160bd20c3f3d62049800073181af3207fc8693aeca882bdfdbb73ebe

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c92131f6505f1aa30ecf21fd075715695266228ad991a318c5852cc4a0936546",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2019-08-05T10:00:53Z",
    "title_canon_sha256": "da19b78d4e0aee284adff10753216cffa35bc51a0d2c4120af3cd12dd2b32b20"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.01540",
    "kind": "arxiv",
    "version": 1
  }
}