Pith Number

pith:MQ4XMTAY

pith:2021:MQ4XMTAYONKVMQGEGGAIKPMKU6

not attested not anchored not stored refs pending

The Emotional Roller Coaster of Responding to Requirements Changes in Software Engineering

John Grundy, Kashumi Madampe, Rashina Hoda

arxiv:2109.03993 v1 · 2021-09-09 · 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{MQ4XMTAYONKVMQGEGGAIKPMKU6}

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	2026-07-05T03:12:53.473185Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6439764c1873555640c43180853d8aa7ba86bc5c9ee3e06815f07a976060a1f8

Aliases

arxiv: 2109.03993 · arxiv_version: 2109.03993v1 · doi: 10.48550/arxiv.2109.03993 · pith_short_12: MQ4XMTAYONKV · pith_short_16: MQ4XMTAYONKVMQGE · pith_short_8: MQ4XMTAY

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/MQ4XMTAYONKVMQGEGGAIKPMKU6 \
  | 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: 6439764c1873555640c43180853d8aa7ba86bc5c9ee3e06815f07a976060a1f8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "279813d8201a6829e44cf3fbe6f29be48e53eb3b26f480fe49e141f6e4ef43a2",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2021-09-09T02:05:40Z",
    "title_canon_sha256": "0db3a8237d4631df69c10971b30698a1b7db48148984ca85eaf56b35611c9b7e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2109.03993",
    "kind": "arxiv",
    "version": 1
  }
}