Pith Number

pith:FJ5YD3WO

pith:2021:FJ5YD3WOPFNWRAQLJY2QTJIPNK

not attested not anchored not stored refs pending

Size-adjustable Ring-shape Photoacoustic Tomography System

Daohuai Jiang, Fei Gao, Feng Gao, Hengrong Lan, Yifei Xu

arxiv:2112.11630 v1 · 2021-12-22 · physics.ins-det · 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{FJ5YD3WOPFNWRAQLJY2QTJIPNK}

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	2026-07-05T03:43:08.972157Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2a7b81eece795b68820b4e3509a50f6a965bac7f8ed5cb84dbedec56959bca5e

Aliases

arxiv: 2112.11630 · arxiv_version: 2112.11630v1 · doi: 10.48550/arxiv.2112.11630 · pith_short_12: FJ5YD3WOPFNW · pith_short_16: FJ5YD3WOPFNWRAQL · pith_short_8: FJ5YD3WO

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/FJ5YD3WOPFNWRAQLJY2QTJIPNK \
  | 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: 2a7b81eece795b68820b4e3509a50f6a965bac7f8ed5cb84dbedec56959bca5e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "33bc4f8998ad7dfd098aa9ecdbf73550c434c4dd9e72b9ce688a533b5aad49d4",
    "cross_cats_sorted": [
      "physics.med-ph"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.ins-det",
    "submitted_at": "2021-12-22T02:31:43Z",
    "title_canon_sha256": "0fcb42b077ba5ca36e19f889429320837d580f9453aecdf0d239a1c17336b9e4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2112.11630",
    "kind": "arxiv",
    "version": 1
  }
}