Pith Number

pith:CR3KHL2H

pith:2021:CR3KHL2HPEB5ZWT2IMQU4MHRIC

not attested not anchored not stored refs pending

Automatic ultrasound vessel segmentation with deep spatiotemporal context learning

Alvin Chen, Baichuan Jiang, Mingxin Zheng, Shyam Bharat

arxiv:2111.02461 v1 · 2021-11-03 · eess.IV · cs.AI · cs.CV · 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{CR3KHL2HPEB5ZWT2IMQU4MHRIC}

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	2026-07-05T03:28:51.818758Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1476a3af477903dcda7a43214e30f140a81e5de74fa4aebd237715dd069c5b02

Aliases

arxiv: 2111.02461 · arxiv_version: 2111.02461v1 · doi: 10.48550/arxiv.2111.02461 · pith_short_12: CR3KHL2HPEB5 · pith_short_16: CR3KHL2HPEB5ZWT2 · pith_short_8: CR3KHL2H

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/CR3KHL2HPEB5ZWT2IMQU4MHRIC \
  | 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: 1476a3af477903dcda7a43214e30f140a81e5de74fa4aebd237715dd069c5b02

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a116ce79dee969c0b94f5e55d521086a0e5b8f5f9cf0fce925fd76d159f87c93",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.CV",
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.IV",
    "submitted_at": "2021-11-03T18:30:15Z",
    "title_canon_sha256": "2fa896b91b0c5afefbb748e6de00180b3de96526003addf636db565eb197afd9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2111.02461",
    "kind": "arxiv",
    "version": 1
  }
}