Pith Number

pith:3DP6U6MT

pith:2011:3DP6U6MT2QT5RSBALJ74LRSL2Q

not attested not anchored not stored refs pending

Expectations and Reality: Why an enterprise software system didn't work as planned

David Greenwood, Ian Sommerville

arxiv:1104.1370 v1 · 2011-04-07 · 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{3DP6U6MT2QT5RSBALJ74LRSL2Q}

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	2026-05-18T04:24:52.360472Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d8dfea7993d427d8c8205a7fc5c64bd43d68dba4bfe146f23b650b35c28b25dd

Aliases

arxiv: 1104.1370 · arxiv_version: 1104.1370v1 · doi: 10.48550/arxiv.1104.1370 · pith_short_12: 3DP6U6MT2QT5 · pith_short_16: 3DP6U6MT2QT5RSBA · pith_short_8: 3DP6U6MT

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/3DP6U6MT2QT5RSBALJ74LRSL2Q \
  | 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: d8dfea7993d427d8c8205a7fc5c64bd43d68dba4bfe146f23b650b35c28b25dd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c23db2eca73a05373345422892767488e131983597045ea1816df0bf6cede77d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2011-04-07T16:23:01Z",
    "title_canon_sha256": "975b4b2958ecebedfa8856435db2248bd4d38376227d29af5ba1a33ed1cdef59"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1104.1370",
    "kind": "arxiv",
    "version": 1
  }
}