Pith Number

pith:HLEGHPA7

pith:2020:HLEGHPA7OXY35J5FIUQRYGVEKL

not attested not anchored not stored refs pending

Efficiency analysis for quantitative MRI of T1 and T2 relaxometry methods

Alena Uus, Anthony Price, David Leit\~ao, Joseph V. Hajnal, Rui Pedro A. G. Teixeira, Shaihan J. Malik

arxiv:2005.02876 v2 · 2020-05-06 · physics.med-ph · eess.IV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HLEGHPA7OXY35J5FIUQRYGVEKL}

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	2026-07-05T03:04:16.136753Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3ac863bc1f75f1bea7a545211c1aa452d3a9dd5f29253cac238ade0aef4cc215

Aliases

arxiv: 2005.02876 · arxiv_version: 2005.02876v2 · doi: 10.48550/arxiv.2005.02876 · pith_short_12: HLEGHPA7OXY3 · pith_short_16: HLEGHPA7OXY35J5F · pith_short_8: HLEGHPA7

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/HLEGHPA7OXY35J5FIUQRYGVEKL \
  | 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: 3ac863bc1f75f1bea7a545211c1aa452d3a9dd5f29253cac238ade0aef4cc215

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a0fa0cde2313dc8aca657b132220c670b3737d3dd2af48915a21c545a545fbad",
    "cross_cats_sorted": [
      "eess.IV"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.med-ph",
    "submitted_at": "2020-05-06T14:52:37Z",
    "title_canon_sha256": "bcf5d6cb351dfbdcca945dc0f6160c51cf97baaa3c120d19315b95232d77e10f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2005.02876",
    "kind": "arxiv",
    "version": 2
  }
}