Pith Number

pith:ZEGXS566

pith:2019:ZEGXS566MYIXYSIOB53BMAI4PR

not attested not anchored not stored refs pending

Algebra in Bishop's style: some major features of the book "A Course in Constructive Algebra'' by Mines, Richman, and Ruitenburg

Henri Lombardi

arxiv:1903.04200 v1 · 2019-03-11 · math.HO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZEGXS566MYIXYSIOB53BMAI4PR}

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	2026-05-17T23:51:36.249754Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c90d7977de66117c490e0f7616011c7c537ab21c207df6531573696bd6fd4d59

Aliases

arxiv: 1903.04200 · arxiv_version: 1903.04200v1 · doi: 10.48550/arxiv.1903.04200 · pith_short_12: ZEGXS566MYIX · pith_short_16: ZEGXS566MYIXYSIO · pith_short_8: ZEGXS566

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/ZEGXS566MYIXYSIOB53BMAI4PR \
  | 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: c90d7977de66117c490e0f7616011c7c537ab21c207df6531573696bd6fd4d59

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "06d939236e3989504ad21dd05723206de0157df382fb69949cfe432013ccffcc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.HO",
    "submitted_at": "2019-03-11T10:26:25Z",
    "title_canon_sha256": "8b0f8ea96352b6985f0b4e168a3f86e448b40ce0a637f521c82d9041dfe8beae"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.04200",
    "kind": "arxiv",
    "version": 1
  }
}