Pith Number

pith:QHAWXCC3

pith:2012:QHAWXCC3S4NQHDXR5JMMUD7OOU

not attested not anchored not stored refs pending

An Improved XP Software Development Model

M. Rizwan Jameel Qureshi, S. A. Hussain

arxiv:1202.2501 v1 · 2012-02-12 · 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{QHAWXCC3S4NQHDXR5JMMUD7OOU}

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	2026-05-18T04:02:26.394510Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

81c16b885b971b038ef1ea58ca0fee7531ac6bf57609256c1633302d79ccf86f

Aliases

arxiv: 1202.2501 · arxiv_version: 1202.2501v1 · doi: 10.48550/arxiv.1202.2501 · pith_short_12: QHAWXCC3S4NQ · pith_short_16: QHAWXCC3S4NQHDXR · pith_short_8: QHAWXCC3

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/QHAWXCC3S4NQHDXR5JMMUD7OOU \
  | 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: 81c16b885b971b038ef1ea58ca0fee7531ac6bf57609256c1633302d79ccf86f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "67955fc0fcafc4acd61b37a78e78092a60638477a2fa144941177f806f432a88",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2012-02-12T08:59:21Z",
    "title_canon_sha256": "9b4b47b64a42873efd8cb7414240eff0e3319d7492f6de97e2f0a834cd4718bf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1202.2501",
    "kind": "arxiv",
    "version": 1
  }
}