Pith Number

pith:ZDJZ5LD2

pith:2021:ZDJZ5LD2C7X2ANLHM2SHMOS2KJ

not attested not anchored not stored refs pending

iVPF: Numerical Invertible Volume Preserving Flow for Efficient Lossless Compression

Chen Zhang, Ning Kang, Shifeng Zhang, Zhenguo Li

arxiv:2103.16211 v2 · 2021-03-30 · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZDJZ5LD2C7X2ANLHM2SHMOS2KJ}

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	2026-07-05T03:27:30.271967Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c8d39eac7a17efa0356766a4763a5a525336a7426834247ffa53bb2550c91c3e

Aliases

arxiv: 2103.16211 · arxiv_version: 2103.16211v2 · doi: 10.48550/arxiv.2103.16211 · pith_short_12: ZDJZ5LD2C7X2 · pith_short_16: ZDJZ5LD2C7X2ANLH · pith_short_8: ZDJZ5LD2

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/ZDJZ5LD2C7X2ANLHM2SHMOS2KJ \
  | 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: c8d39eac7a17efa0356766a4763a5a525336a7426834247ffa53bb2550c91c3e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "88b8549a4b08400c11edc1701e559479180e8c9c096fe8feb6ad719b55e35a81",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2021-03-30T09:50:58Z",
    "title_canon_sha256": "3b79bd3ccbce8c560e20983bf50cf51ed184653cf0c85c9e73bbd62e5cd36c84"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2103.16211",
    "kind": "arxiv",
    "version": 2
  }
}