Pith Number

pith:ZP6F3YKG

pith:2013:ZP6F3YKGYEEN7E7QYHDSU4MXV4

not attested not anchored not stored refs pending

Software Interfaces: On The Impact of Interface Design Anomalies

Abdelkarim Erradi, Hani Abdeen, Osama Shata

arxiv:1309.7950 v1 · 2013-09-30 · 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{ZP6F3YKGYEEN7E7QYHDSU4MXV4}

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	2026-05-18T03:11:47.740632Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cbfc5de146c108df93f0c1c72a7197af079d67109b1a5cbe892ed29e2baef88e

Aliases

arxiv: 1309.7950 · arxiv_version: 1309.7950v1 · doi: 10.48550/arxiv.1309.7950 · pith_short_12: ZP6F3YKGYEEN · pith_short_16: ZP6F3YKGYEEN7E7Q · pith_short_8: ZP6F3YKG

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/ZP6F3YKGYEEN7E7QYHDSU4MXV4 \
  | 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: cbfc5de146c108df93f0c1c72a7197af079d67109b1a5cbe892ed29e2baef88e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "002341e86edf16ce9823fb4c166ebd978bfaedc51a509088bc8592401fae5a22",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/3.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2013-09-30T18:32:57Z",
    "title_canon_sha256": "445dae0ee616c70f15a9fb08c50e7f3ee19bafdddf095cff2c4acf663bdbaf33"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.7950",
    "kind": "arxiv",
    "version": 1
  }
}