Pith Number

pith:OGFUB5B2

pith:2025:OGFUB5B25CQQYCDFSWGBJF6GR3

not attested not anchored not stored refs pending

Software Portability for Computer Algebra

Arthur C. Norman, Stephen M. Watt

arxiv:2506.01864 v4 · 2025-06-02 · cs.SC

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OGFUB5B25CQQYCDFSWGBJF6GR3}

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	2026-07-05T12:06:13.289048Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

718b40f43ae8a10c0865958c1497c68ee707be4eb6360acc628cdcd9fadacde4

Aliases

arxiv: 2506.01864 · arxiv_version: 2506.01864v4 · doi: 10.48550/arxiv.2506.01864 · pith_short_12: OGFUB5B25CQQ · pith_short_16: OGFUB5B25CQQYCDF · pith_short_8: OGFUB5B2

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/OGFUB5B25CQQYCDFSWGBJF6GR3 \
  | 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: 718b40f43ae8a10c0865958c1497c68ee707be4eb6360acc628cdcd9fadacde4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3e9be4ac4f85aa17cbec362deb660ee0aeed7d02823d434a92b2b63a619363ef",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SC",
    "submitted_at": "2025-06-02T16:53:04Z",
    "title_canon_sha256": "9d8af8467923e11c7f1adbcb86a993433ec69b8151b35195701ef55ed16b8ba8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2506.01864",
    "kind": "arxiv",
    "version": 4
  }
}