Pith Number

pith:SFWD2EAB

pith:2018:SFWD2EABJ6KYKLUFFXCR5HDQYU

not attested not anchored not stored refs pending

Entanglement-assisted quantum MDS codes from constacyclic codes with large minimum distance

Hao Cao, Liangdong Lu, Ruihu Li, Wenping Ma, Yang Liu, Yuena Ma

arxiv:1803.04168 v1 · 2018-03-12 · cs.IT · math.IT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SFWD2EABJ6KYKLUFFXCR5HDQYU}

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	2026-05-18T00:21:32.437942Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

916c3d10014f95852e852dc51e9c70c526f5bd00fa7e5336bc6d4f253d3002d1

Aliases

arxiv: 1803.04168 · arxiv_version: 1803.04168v1 · doi: 10.48550/arxiv.1803.04168 · pith_short_12: SFWD2EABJ6KY · pith_short_16: SFWD2EABJ6KYKLUF · pith_short_8: SFWD2EAB

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/SFWD2EABJ6KYKLUFFXCR5HDQYU \
  | 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: 916c3d10014f95852e852dc51e9c70c526f5bd00fa7e5336bc6d4f253d3002d1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7c121ae3a9bdc59e5f417d9eff0b2d497d7be6d30731f4cf5f090b1757865691",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2018-03-12T10:04:15Z",
    "title_canon_sha256": "99465e3eec90d80eeec66246b76bb792f8c4003cdedd12e5f33ce147f4b46ae9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.04168",
    "kind": "arxiv",
    "version": 1
  }
}