Pith Number

pith:HUT4FTCK

pith:2019:HUT4FTCKUEOHZCUGRUSGYIF4P6

not attested not anchored not stored refs pending

Towards an Holistic Definition of Requirements Debt

Davide Fucci, Valentina Lenarduzzi

arxiv:1907.10887 v1 · 2019-07-25 · 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{HUT4FTCKUEOHZCUGRUSGYIF4P6}

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	2026-05-17T23:39:34.192102Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3d27c2cc4aa11c7c8a868d246c20bc7f9788b88d22661743e70e935f94dd915a

Aliases

arxiv: 1907.10887 · arxiv_version: 1907.10887v1 · doi: 10.48550/arxiv.1907.10887 · pith_short_12: HUT4FTCKUEOH · pith_short_16: HUT4FTCKUEOHZCUG · pith_short_8: HUT4FTCK

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/HUT4FTCKUEOHZCUGRUSGYIF4P6 \
  | 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: 3d27c2cc4aa11c7c8a868d246c20bc7f9788b88d22661743e70e935f94dd915a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "84fbe01b7aea115fc18dd202b467a04d5dc283611450bf00672a7950ce84b3cc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2019-07-25T08:01:17Z",
    "title_canon_sha256": "fd7eee22e4de1d5ed856de295e3031adffac4fe4d5cf674584407a19cf100117"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.10887",
    "kind": "arxiv",
    "version": 1
  }
}