Pith Number

pith:CFS5PIGU

pith:2019:CFS5PIGUCIOQYXABW7A7Y25XTW

not attested not anchored not stored refs pending

Generating Requirements Out of Thin Air: Towards Automated Feature Identification for New Apps

Daniel Mendez Fern\'andez, Norbert Seyff, Tahira Iqbal

arxiv:1909.11302 v1 · 2019-09-25 · 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{CFS5PIGUCIOQYXABW7A7Y25XTW}

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	2026-07-05T00:07:10.038049Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1165d7a0d4121d0c5c01b7c1fc6bb79d873191304185c82e9cfe9ed0cb0b73e5

Aliases

arxiv: 1909.11302 · arxiv_version: 1909.11302v1 · doi: 10.48550/arxiv.1909.11302 · pith_short_12: CFS5PIGUCIOQ · pith_short_16: CFS5PIGUCIOQYXAB · pith_short_8: CFS5PIGU

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/CFS5PIGUCIOQYXABW7A7Y25XTW \
  | 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: 1165d7a0d4121d0c5c01b7c1fc6bb79d873191304185c82e9cfe9ed0cb0b73e5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0f332987a40f9df53eca909c7303041e523a56a9277b52d23130630b87d7f5bd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2019-09-25T06:21:22Z",
    "title_canon_sha256": "c3927bad7729b6f64a0fe775e6bf1d84b728bc8c653338f26cc510db5cb4cb44"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1909.11302",
    "kind": "arxiv",
    "version": 1
  }
}