Pith Number

pith:FQD2U2VC

pith:2021:FQD2U2VCU6XW3CAWQQFVMT7HXJ

not attested not anchored not stored refs pending

Evaluation of blood coagulation by optical vortex tracking

Guangbin Ren, Hui Zhang, Jiaxing Gong, Jing Wang, Qi Li, Wenjian Lu, Yaowen Zhang

arxiv:2105.09306 v1 · 2021-05-18 · physics.med-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FQD2U2VCU6XW3CAWQQFVMT7HXJ}

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	2026-07-05T02:41:40.043859Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2c07aa6aa2a7af6d8816840b564fe7ba5e83d9b492a638db4243a49dc18fd44e

Aliases

arxiv: 2105.09306 · arxiv_version: 2105.09306v1 · doi: 10.48550/arxiv.2105.09306 · pith_short_12: FQD2U2VCU6XW · pith_short_16: FQD2U2VCU6XW3CAW · pith_short_8: FQD2U2VC

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/FQD2U2VCU6XW3CAWQQFVMT7HXJ \
  | 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: 2c07aa6aa2a7af6d8816840b564fe7ba5e83d9b492a638db4243a49dc18fd44e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "08f01eeda75ada2e5859853cc1966b55f10295f2a2a84701984131aeab6b5d31",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.med-ph",
    "submitted_at": "2021-05-18T08:07:06Z",
    "title_canon_sha256": "f41ee9f17f93c3a39096754a4f39d2ebbd0fc2bcc2925c330ebae7886b5ca89c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2105.09306",
    "kind": "arxiv",
    "version": 1
  }
}