Pith Number

pith:DDFDFNQR

pith:2015:DDFDFNQR2OXNOAHX22S6MY4WNN

not attested not anchored not stored refs pending

Enhancement of magnetic resonance imaging with metasurfaces

A. J. E. Raaijmakers, A. N. Poddubny, A. P. Slobozhanyuk, A. V. Kozachenko, C. A. T. van den Berg, I. A. Dubrovina, I. V. Melchakova, P. A. Belov, Yu. S. Kivshar

arxiv:1507.01411 v1 · 2015-07-06 · 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{DDFDFNQR2OXNOAHX22S6MY4WNN}

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	2026-05-18T01:37:17.022559Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

18ca32b611d3aed700f7d6a5e663966b6690410ca806719ba483f9285d9c1c74

Aliases

arxiv: 1507.01411 · arxiv_version: 1507.01411v1 · doi: 10.48550/arxiv.1507.01411 · pith_short_12: DDFDFNQR2OXN · pith_short_16: DDFDFNQR2OXNOAHX · pith_short_8: DDFDFNQR

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/DDFDFNQR2OXNOAHX22S6MY4WNN \
  | 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: 18ca32b611d3aed700f7d6a5e663966b6690410ca806719ba483f9285d9c1c74

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e6f48d4dc47288780e3dc7a5940d68ac9af4bf69d932c9bf831d0fdef887309e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.med-ph",
    "submitted_at": "2015-07-06T12:16:23Z",
    "title_canon_sha256": "cc42b9f297767fc64cd032c106136f701aee476ad819fb917b1860568fa3d7d0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.01411",
    "kind": "arxiv",
    "version": 1
  }
}