Pith Number

pith:QREE5Z4J

pith:2013:QREE5Z4JCRNOU7MU6KXBFAF6ZP

not attested not anchored not stored refs pending

Metrics for Assessing The Design of Software Interfaces

Hani Abdeen, Osama Shata

arxiv:1302.2657 v1 · 2013-02-11 · 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{QREE5Z4JCRNOU7MU6KXBFAF6ZP}

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	2026-05-18T03:33:51.314146Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

84484ee789145aea7d94f2ae1280becbd407a67e936dc5a12491f151833353e7

Aliases

arxiv: 1302.2657 · arxiv_version: 1302.2657v1 · doi: 10.48550/arxiv.1302.2657 · pith_short_12: QREE5Z4JCRNO · pith_short_16: QREE5Z4JCRNOU7MU · pith_short_8: QREE5Z4J

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/QREE5Z4JCRNOU7MU6KXBFAF6ZP \
  | 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: 84484ee789145aea7d94f2ae1280becbd407a67e936dc5a12491f151833353e7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2e6fca16b9c67f59c49fac82dd1cfd320f2a4ade0282a0577e8ef0fb2104c1c3",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/3.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2013-02-11T22:41:25Z",
    "title_canon_sha256": "f6fa71ac14a0ade2493fdff9f99533ceea698882495b5277975d6781d45ebb34"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1302.2657",
    "kind": "arxiv",
    "version": 1
  }
}