Pith Number

pith:DMCKRDY5

pith:2016:DMCKRDY5D2DMY26DXKA6SN5GAL

not attested not anchored not stored refs pending

Bringing the 'perfect lens' into focus by near-perfect compensation of losses without gain media

Durdu \"O. G\"uney, Mehdi Sadatgol, Wyatt Adams, Xu Zhang

arxiv:1607.07464 v1 · 2016-07-25 · physics.optics

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DMCKRDY5D2DMY26DXKA6SN5GAL}

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	2026-05-18T00:54:35.282274Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1b04a88f1d1e86cc6bc3ba81e937a602f6fc98ef1eab725b4d6555aca1e4fb65

Aliases

arxiv: 1607.07464 · arxiv_version: 1607.07464v1 · doi: 10.48550/arxiv.1607.07464 · pith_short_12: DMCKRDY5D2DM · pith_short_16: DMCKRDY5D2DMY26D · pith_short_8: DMCKRDY5

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/DMCKRDY5D2DMY26DXKA6SN5GAL \
  | 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: 1b04a88f1d1e86cc6bc3ba81e937a602f6fc98ef1eab725b4d6555aca1e4fb65

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7e5fbe72dd6940dd9c9c6e3e85deef217fd3420069d0425300b7167212a554f5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2016-07-25T20:24:04Z",
    "title_canon_sha256": "9d95b182c4e831dc7641d9ba83648f36791d33540fae1f9221fe0f14c7550882"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1607.07464",
    "kind": "arxiv",
    "version": 1
  }
}