Pith Number

pith:VKVMRVCH

pith:2021:VKVMRVCHDP7RK6M6F7VHCAONZ2

not attested not anchored not stored refs pending

Automatic Identification of the End-Diastolic and End-Systolic Cardiac Frames from Invasive Coronary Angiography Videos

Chen Zhao, Fubao Zhu1, Haipeng Tang, Jingfeng Jiang, Minghao Dong, Shun Xu, Weihua Zhou, Xumin Dai, Yinghui Meng, Ying Zhou, Zhihui Xu

arxiv:2110.02844 v1 · 2021-10-06 · eess.IV · cs.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VKVMRVCHDP7RK6M6F7VHCAONZ2}

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	2026-07-05T03:20:30.570118Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

aaaac8d4471bff15799e2fea7101cdce88bec8f2b6689290da2437924484af2a

Aliases

arxiv: 2110.02844 · arxiv_version: 2110.02844v1 · doi: 10.48550/arxiv.2110.02844 · pith_short_12: VKVMRVCHDP7R · pith_short_16: VKVMRVCHDP7RK6M6 · pith_short_8: VKVMRVCH

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/VKVMRVCHDP7RK6M6F7VHCAONZ2 \
  | 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: aaaac8d4471bff15799e2fea7101cdce88bec8f2b6689290da2437924484af2a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7bffb23e2b1b160acee8f4e413a9d5b40a040d070708d7f2b2f1454f6e4a83a7",
    "cross_cats_sorted": [
      "cs.CV"
    ],
    "license": "http://creativecommons.org/publicdomain/zero/1.0/",
    "primary_cat": "eess.IV",
    "submitted_at": "2021-10-06T15:16:55Z",
    "title_canon_sha256": "69405277e3f73870f7528d0bb61a4c8770d67a31feaa4ebd2d3152a6f1dcf94a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2110.02844",
    "kind": "arxiv",
    "version": 1
  }
}