Pith Number

pith:DCHQQ3BP

pith:2019:DCHQQ3BPKCUIJ5TYZ7LL73EFDW

not attested not anchored not stored refs pending

Reasoning about Block-based Cloud Storage Systems

Bowen Zhang, Hanpin Wang, Kun Gao, Lei Zhang, Yongzhi Cao, Zhao Jin

arxiv:1904.04442 v2 · 2019-04-09 · cs.LO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DCHQQ3BPKCUIJ5TYZ7LL73EFDW}

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	2026-07-05T00:18:06.970614Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

188f086c2f50a884f678cfd6bfec851d9e03b998092339d4a78b96553bb3ca10

Aliases

arxiv: 1904.04442 · arxiv_version: 1904.04442v2 · doi: 10.48550/arxiv.1904.04442 · pith_short_12: DCHQQ3BPKCUI · pith_short_16: DCHQQ3BPKCUIJ5TY · pith_short_8: DCHQQ3BP

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/DCHQQ3BPKCUIJ5TYZ7LL73EFDW \
  | 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: 188f086c2f50a884f678cfd6bfec851d9e03b998092339d4a78b96553bb3ca10

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "aba844e0085afd173b088bbcbf664d0adf2b43d61cf0b6644c36e645e5266c56",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2019-04-09T03:19:00Z",
    "title_canon_sha256": "d5869e45d7299393153ce7864645a910e3a932fc38bc7e98576bb08df9c0a391"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.04442",
    "kind": "arxiv",
    "version": 2
  }
}