Pith Number

pith:B53XFSHG

pith:2009:B53XFSHGDDUML3GQBUZMF6MTK3

not attested not anchored not stored refs pending

Optimized, Unequal Pulse Spacing in Multiple Echo Sequences Improves Refocusing

Ashley Stokes, Elizabeth Jenista, Rosa Branca, Warren Warren

arxiv:0909.5666 v1 · 2009-09-30 · physics.chem-ph · 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{B53XFSHGDDUML3GQBUZMF6MTK3}

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	2026-05-18T02:11:35.820871Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0f7772c8e618e8c5ecd00d32c2f99356ebcb62337059cf995d06835ee4377677

Aliases

arxiv: 0909.5666 · arxiv_version: 0909.5666v1 · doi: 10.48550/arxiv.0909.5666 · pith_short_12: B53XFSHGDDUM · pith_short_16: B53XFSHGDDUML3GQ · pith_short_8: B53XFSHG

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/B53XFSHGDDUML3GQBUZMF6MTK3 \
  | 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: 0f7772c8e618e8c5ecd00d32c2f99356ebcb62337059cf995d06835ee4377677

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d10140fabb47615a428bef332503734eeb36eb12fb45cc537d21630da8577e63",
    "cross_cats_sorted": [
      "physics.med-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.chem-ph",
    "submitted_at": "2009-09-30T17:10:55Z",
    "title_canon_sha256": "44a66509552fb7b15645f5501bcf3cb898e71366d93d76070e6ea921298599ef"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.5666",
    "kind": "arxiv",
    "version": 1
  }
}