Pith Number

pith:UA7LVYSJ

pith:2021:UA7LVYSJMH4CG7WXRDLAD5HW2Y

not attested not anchored not stored refs pending

Separating Data via Block Invalidation Time Inference for Write Amplification Reduction in Log-Structured Storage

Chao Shi, Jinhong Li, Lilong Huang, Patrick P. C. Lee, Qiuping Wang, Tao Ouyang

arxiv:2104.12425 v3 · 2021-04-26 · cs.DC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UA7LVYSJMH4CG7WXRDLAD5HW2Y}

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	2026-07-05T03:55:47.634517Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a03ebae24961f8237ed788d601f4f6d610f2ac5f8a689e383a6516b1b377d4c6

Aliases

arxiv: 2104.12425 · arxiv_version: 2104.12425v3 · doi: 10.48550/arxiv.2104.12425 · pith_short_12: UA7LVYSJMH4C · pith_short_16: UA7LVYSJMH4CG7WX · pith_short_8: UA7LVYSJ

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/UA7LVYSJMH4CG7WXRDLAD5HW2Y \
  | 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: a03ebae24961f8237ed788d601f4f6d610f2ac5f8a689e383a6516b1b377d4c6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a480645460dcfc7fa7457503e57d80e91e87e61d9f452aeedc72e0c8cc559135",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DC",
    "submitted_at": "2021-04-26T09:36:24Z",
    "title_canon_sha256": "faf508e96bf9d9f305b59bdf46e579ea79307cce6dcc330505aa981bc35cdc1a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2104.12425",
    "kind": "arxiv",
    "version": 3
  }
}