Pith Number

pith:HRDBUXD5

pith:2014:HRDBUXD5LOVH4QVK3RNSWJYZ7F

not attested not anchored not stored refs pending

A note on unital full amalgamated free products of quasi-diagonal C*-algebras

Don Hadwin, Jiankui Li, Junhao Shen, Qihui Li, Xiujuan Ma

arxiv:1412.0120 v1 · 2014-11-29 · math.OA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HRDBUXD5LOVH4QVK3RNSWJYZ7F}

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	2026-05-18T02:32:30.296485Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3c461a5c7d5baa7e42aadc5b2b2719f94203891e9160517405ec3170357fc281

Aliases

arxiv: 1412.0120 · arxiv_version: 1412.0120v1 · doi: 10.48550/arxiv.1412.0120 · pith_short_12: HRDBUXD5LOVH · pith_short_16: HRDBUXD5LOVH4QVK · pith_short_8: HRDBUXD5

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/HRDBUXD5LOVH4QVK3RNSWJYZ7F \
  | 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: 3c461a5c7d5baa7e42aadc5b2b2719f94203891e9160517405ec3170357fc281

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ab673370787ea72dfa4e84429138851754ecc61367437003f5b0033236cc0aee",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/3.0/",
    "primary_cat": "math.OA",
    "submitted_at": "2014-11-29T15:42:28Z",
    "title_canon_sha256": "a0f1118154aa6c06a02dcc7a900782baf4d82bbe7cea91e5ec7c5d339e1b6ad3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1412.0120",
    "kind": "arxiv",
    "version": 1
  }
}