Pith Number

pith:BIV7I7KC

pith:2016:BIV7I7KC6M5RPDB3RP4H2RAOFD

not attested not anchored not stored refs pending

On sets of first-order formulas axiomatizing representable relation algebras

Jeremy F. Alm

arxiv:1604.08227 v1 · 2016-04-27 · math.LO · math.RA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BIV7I7KC6M5RPDB3RP4H2RAOFD}

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	2026-05-18T01:16:04.545960Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0a2bf47d42f33b178c3b8bf87d440e28e3c6b54a7fd0f4cdb7bb7231c1cf16d5

Aliases

arxiv: 1604.08227 · arxiv_version: 1604.08227v1 · doi: 10.48550/arxiv.1604.08227 · pith_short_12: BIV7I7KC6M5R · pith_short_16: BIV7I7KC6M5RPDB3 · pith_short_8: BIV7I7KC

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/BIV7I7KC6M5RPDB3RP4H2RAOFD \
  | 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: 0a2bf47d42f33b178c3b8bf87d440e28e3c6b54a7fd0f4cdb7bb7231c1cf16d5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a46fcf8b24868f929f1c3ebeb6db4728d0d4a2eddc97f3d23fed2145d5a9b232",
    "cross_cats_sorted": [
      "math.RA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2016-04-27T20:22:30Z",
    "title_canon_sha256": "cbce27bd6e9d77dded9fa55478f9e8c1e326970aa364af023cf54b18eec749b0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1604.08227",
    "kind": "arxiv",
    "version": 1
  }
}