Pith Number

pith:MRBQWETS

pith:2021:MRBQWETSQILXKZYHX7Z3J467DI

not attested not anchored not stored refs pending

What are Hybrid Development Methods Made Of? An Evidence-based Characterization

David Raffo, Dietmar Pfahl, Jil Kl\"under, J\"urgen M\"unch, Marco Kuhrmann, Oliver Linssen, Paolo Tell, Steffen K\"upper, Stephen G. MacDonell

arxiv:2101.08016 v1 · 2021-01-20 · 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{MRBQWETSQILXKZYHX7Z3J467DI}

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	2026-07-05T02:08:24.483954Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

64430b12728217756707bff3b4f3df1a1bb0b3ccf2b13287a6e82e8617d714db

Aliases

arxiv: 2101.08016 · arxiv_version: 2101.08016v1 · doi: 10.48550/arxiv.2101.08016 · pith_short_12: MRBQWETSQILX · pith_short_16: MRBQWETSQILXKZYH · pith_short_8: MRBQWETS

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/MRBQWETSQILXKZYHX7Z3J467DI \
  | 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: 64430b12728217756707bff3b4f3df1a1bb0b3ccf2b13287a6e82e8617d714db

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "67c992cb978a7ff23e9e134ff05402741a6f3a90eb1595867155ec76a1c808c4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2021-01-20T08:12:47Z",
    "title_canon_sha256": "568647ef757a2ccad804753cfb88af7debd525d0a5d36892d31f397ed03fb616"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2101.08016",
    "kind": "arxiv",
    "version": 1
  }
}