Pith Number

pith:SOM2QTMM

pith:2021:SOM2QTMMGYPHQU3SOMLFFNPL62

not attested not anchored not stored refs pending

XCloud-pFISTA: A Medical Intelligence Cloud for Accelerated MRI

Biao Qu, Chen Qian, Di Guo, Jian Wang, Xiaobo Qu, Yi Guo, Yirong Zhou, Yongfu You, Zi Wang

arxiv:2104.08824 v2 · 2021-04-18 · eess.IV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SOM2QTMMGYPHQU3SOMLFFNPL62}

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	2026-07-05T02:48:22.520540Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9399a84d8c361e785372731652b5ebf68aa649565174b4c1b1e6455706810dfa

Aliases

arxiv: 2104.08824 · arxiv_version: 2104.08824v2 · doi: 10.48550/arxiv.2104.08824 · pith_short_12: SOM2QTMMGYPH · pith_short_16: SOM2QTMMGYPHQU3S · pith_short_8: SOM2QTMM

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/SOM2QTMMGYPHQU3SOMLFFNPL62 \
  | 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: 9399a84d8c361e785372731652b5ebf68aa649565174b4c1b1e6455706810dfa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "916dad12bdf2be24704c131ce7f831de44fed6fbb28cf5b0b0bf8021914b5bbd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.IV",
    "submitted_at": "2021-04-18T11:33:59Z",
    "title_canon_sha256": "b3c1825fc7515222703c9a265c68046f4696126b564970abe0429f8c8d4234f7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2104.08824",
    "kind": "arxiv",
    "version": 2
  }
}