Pith Number

pith:4GFQWWEU

pith:2013:4GFQWWEUTV5UEQ2N3U3MEKHPAZ

not attested not anchored not stored refs pending

Analysing the Assumed Benefits of Software Requirements

Richard Ellis-Braithwaite

arxiv:1305.3853 v2 · 2013-05-16 · 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{4GFQWWEUTV5UEQ2N3U3MEKHPAZ}

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	2026-05-18T03:20:58.164052Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e18b0b58949d7b42434ddd36c228ef06540a836d28c106f2c0a961d4d5d08d43

Aliases

arxiv: 1305.3853 · arxiv_version: 1305.3853v2 · doi: 10.48550/arxiv.1305.3853 · pith_short_12: 4GFQWWEUTV5U · pith_short_16: 4GFQWWEUTV5UEQ2N · pith_short_8: 4GFQWWEU

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/4GFQWWEUTV5UEQ2N3U3MEKHPAZ \
  | 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: e18b0b58949d7b42434ddd36c228ef06540a836d28c106f2c0a961d4d5d08d43

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b740e0c541273196ec4a098214784eedebf81e3a2de9eee9c665262b04c3df58",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/publicdomain/",
    "primary_cat": "cs.SE",
    "submitted_at": "2013-05-16T16:04:58Z",
    "title_canon_sha256": "54416e3fa0cacb0a2b6a3ee5eeccc0874d65e1c408ce38d0015cbb21a5c5c2b3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.3853",
    "kind": "arxiv",
    "version": 2
  }
}