Pith Number

pith:EVS47UQS

pith:2021:EVS47UQSFTWXDBYMSVF377FQNP

not attested not anchored not stored refs pending

Grey Literature in Software Engineering: A Critical Review

Bruno Cartaxo, Carolline Pena, Crescencio Lima, Fernando Kamei, Gustavo Pinto, Igor Wiese, Ivanilton Polato, M\'arcio Ribeiro, S\'ergio Soares, Vilmar Nepomuceno, Waldemar Ferreira

arxiv:2104.13435 v2 · 2021-04-27 · 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{EVS47UQSFTWXDBYMSVF377FQNP}

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	2026-07-05T02:39:59.978483Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2565cfd2122ced71870c954bbffcb06bc9d1e71b0880353bb2212b363e28bdf1

Aliases

arxiv: 2104.13435 · arxiv_version: 2104.13435v2 · doi: 10.48550/arxiv.2104.13435 · pith_short_12: EVS47UQSFTWX · pith_short_16: EVS47UQSFTWXDBYM · pith_short_8: EVS47UQS

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/EVS47UQSFTWXDBYMSVF377FQNP \
  | 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: 2565cfd2122ced71870c954bbffcb06bc9d1e71b0880353bb2212b363e28bdf1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6780452547e0aa8272e8c9777e3d24b5f1997c857f0b260dd51e5471f73d6d27",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2021-04-27T19:06:44Z",
    "title_canon_sha256": "67026d4e45f5b137dbf35c951e1c72ad3951207eddc3e4db3025be04f7268228"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2104.13435",
    "kind": "arxiv",
    "version": 2
  }
}