Pith Number

pith:LTGUCCU5

pith:2016:LTGUCCU5FBIEFMB2U3WPVRQ7FZ

not attested not anchored not stored refs pending

Are "Non-functional" Requirements really Non-functional?

A. Vogelsang, D. M\'endez Fern\'andez, J. Eckhardt

arxiv:1611.08868 v1 · 2016-11-27 · 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{LTGUCCU5FBIEFMB2U3WPVRQ7FZ}

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	2026-05-18T00:56:30.021194Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5ccd410a9d285042b03aa6ecfac61f2e7ec1c08c40dcc2a158d164cb95103546

Aliases

arxiv: 1611.08868 · arxiv_version: 1611.08868v1 · doi: 10.48550/arxiv.1611.08868 · pith_short_12: LTGUCCU5FBIE · pith_short_16: LTGUCCU5FBIEFMB2 · pith_short_8: LTGUCCU5

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/LTGUCCU5FBIEFMB2U3WPVRQ7FZ \
  | 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: 5ccd410a9d285042b03aa6ecfac61f2e7ec1c08c40dcc2a158d164cb95103546

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "423f7ae096e6f2aa619a78cb38be41852bae2d9b0e1b3233411560512570dc80",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2016-11-27T15:44:05Z",
    "title_canon_sha256": "2dd45319b477914cf732dca3422cb35b1c7f67f17458af0f84828b102057fd24"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1611.08868",
    "kind": "arxiv",
    "version": 1
  }
}