Pith Number

pith:F4TNDDLM

pith:2017:F4TNDDLMFT6UVMB2R4LTNNWFCL

not attested not anchored not stored refs pending

What Works Better? A Study of Classifying Requirements

Guenther Ruhe, Kurt Schneider, Martin Glinz, Oliver Karras, Parisa Ghazi, Zahra Shakeri Hossein Abad

arxiv:1707.02358 v1 · 2017-07-07 · 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{F4TNDDLMFT6UVMB2R4LTNNWFCL}

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	2026-05-18T00:40:39.422322Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2f26d18d6c2cfd4ab03a8f1736b6c512fdc48a4d6ca158a19b085ee4d42f1e6c

Aliases

arxiv: 1707.02358 · arxiv_version: 1707.02358v1 · doi: 10.48550/arxiv.1707.02358 · pith_short_12: F4TNDDLMFT6U · pith_short_16: F4TNDDLMFT6UVMB2 · pith_short_8: F4TNDDLM

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/F4TNDDLMFT6UVMB2R4LTNNWFCL \
  | 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: 2f26d18d6c2cfd4ab03a8f1736b6c512fdc48a4d6ca158a19b085ee4d42f1e6c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b38c35f16f5a28d876fdb754ccd87576f528f9afe32aa910fafcfd8056389380",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2017-07-07T20:54:22Z",
    "title_canon_sha256": "e216a9940af2dcc35e3d1d31be4be9c5c28222f0d896a08180455509a6556588"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1707.02358",
    "kind": "arxiv",
    "version": 1
  }
}