Pith Number

pith:L7YW2OO2

pith:2015:L7YW2OO27LAFWP3GCGZK6UXUGW

not attested not anchored not stored refs pending

HFR Code: A Flexible Replication Scheme for Cloud Storage Systems

Bing Zhu, Hui Li, Kenneth W. Shum, Shuo-Yen Robert Li

arxiv:1509.03800 v1 · 2015-09-13 · 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{L7YW2OO27LAFWP3GCGZK6UXUGW}

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	2026-07-05T01:02:41.622890Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5ff16d39dafac05b3f6611b2af52f435997726b3cb8a18fb9f1ab99325af2bc3

Aliases

arxiv: 1509.03800 · arxiv_version: 1509.03800v1 · doi: 10.48550/arxiv.1509.03800 · pith_short_12: L7YW2OO27LAF · pith_short_16: L7YW2OO27LAFWP3G · pith_short_8: L7YW2OO2

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/L7YW2OO27LAFWP3GCGZK6UXUGW \
  | 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: 5ff16d39dafac05b3f6611b2af52f435997726b3cb8a18fb9f1ab99325af2bc3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2d16eaa5fb6f7f525d40aebbba145347c0093c9311da23fec410f95c470ba074",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2015-09-13T03:27:49Z",
    "title_canon_sha256": "bb181e1062e367a222ee8907731135ee04447b0b8e25be6c6b2e7399c4a1dbb9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.03800",
    "kind": "arxiv",
    "version": 1
  }
}