Pith Number

pith:RDQMJ2V2

pith:2025:RDQMJ2V2PC36TRYM5L4CASIUUT

not attested not anchored not stored refs pending

Real-Time Gradient Waveform Design for Arbitrary $k$-Space Trajectories

Haikun Qi, Hongzhang Huang, Jian Xu, Peng Hu, Qinfang Miao, Rui Luo

arxiv:2507.21625 v2 · 2025-07-29 · physics.med-ph · cs.SY · eess.SY

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RDQMJ2V2PC36TRYM5L4CASIUUT}

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	2026-07-05T12:07:09.842508Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

88e0c4eaba78b7e9c70ceaf8204914a4f725460192ee78404ae95dcef06faf44

Aliases

arxiv: 2507.21625 · arxiv_version: 2507.21625v2 · doi: 10.48550/arxiv.2507.21625 · pith_short_12: RDQMJ2V2PC36 · pith_short_16: RDQMJ2V2PC36TRYM · pith_short_8: RDQMJ2V2

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/RDQMJ2V2PC36TRYM5L4CASIUUT \
  | 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: 88e0c4eaba78b7e9c70ceaf8204914a4f725460192ee78404ae95dcef06faf44

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "38c6f163545a42dccec92a1d6963e2dc24e63e47700c1fdd8da45a43956ce6f8",
    "cross_cats_sorted": [
      "cs.SY",
      "eess.SY"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.med-ph",
    "submitted_at": "2025-07-29T09:35:55Z",
    "title_canon_sha256": "30e278cba743571b9b8acf4454790374df4e47babcf6e09346a4fdc61f63e53d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2507.21625",
    "kind": "arxiv",
    "version": 2
  }
}