Pith Number

pith:EERM3R6Z

pith:2016:EERM3R6ZRRK5PLXEMTW7GIHXRF

not attested not anchored not stored refs pending

Regular and positive noncommutative rational functions

Igor Klep, James Eldred Pascoe, Jurij Vol\v{c}i\v{c}

arxiv:1605.03188 v2 · 2016-05-10 · 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{EERM3R6ZRRK5PLXEMTW7GIHXRF}

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	2026-05-18T00:29:33.651114Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2122cdc7d98c55d7aee464edf320f78966e2583b421f4ab9dd5a65e8be246872

Aliases

arxiv: 1605.03188 · arxiv_version: 1605.03188v2 · doi: 10.48550/arxiv.1605.03188 · pith_short_12: EERM3R6ZRRK5 · pith_short_16: EERM3R6ZRRK5PLXE · pith_short_8: EERM3R6Z

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/EERM3R6ZRRK5PLXEMTW7GIHXRF \
  | 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: 2122cdc7d98c55d7aee464edf320f78966e2583b421f4ab9dd5a65e8be246872

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1625fe5dace6447cc12ccd9beeadfd770fd6d1931d0077d89a1f9d1544a93f9c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.RA",
    "submitted_at": "2016-05-10T20:00:02Z",
    "title_canon_sha256": "e72911852c672df92a51196de3935b5a914fa85603cce93b2e28a1188960e933"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1605.03188",
    "kind": "arxiv",
    "version": 2
  }
}