Pith Number

pith:5KMLCH4W

pith:2011:5KMLCH4WZXAMM7ZM3UTBPA5INE

not attested not anchored not stored refs pending

Time-reversal in dynamically-tuned zero-gap periodic systems

John B. Pendry, Yonatan Sivan

arxiv:1104.4635 v1 · 2011-04-24 · 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{5KMLCH4WZXAMM7ZM3UTBPA5INE}

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	2026-05-18T02:02:15.659693Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ea98b11f96cdc0c67f2cdd261783a8693d2d54b4e4e714a13bb0618e54bf1ee0

Aliases

arxiv: 1104.4635 · arxiv_version: 1104.4635v1 · doi: 10.48550/arxiv.1104.4635 · pith_short_12: 5KMLCH4WZXAM · pith_short_16: 5KMLCH4WZXAMM7ZM · pith_short_8: 5KMLCH4W

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/5KMLCH4WZXAMM7ZM3UTBPA5INE \
  | 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: ea98b11f96cdc0c67f2cdd261783a8693d2d54b4e4e714a13bb0618e54bf1ee0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c00ab16604767c03fd7d90cd150cbfcb36bd8566a33b386b1d8bd1df1fc85cad",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2011-04-24T15:12:09Z",
    "title_canon_sha256": "0b6dad12f81fa04a6d141dcc11a5d63f60dd8429d8f00bf2a2f6593e8f899102"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1104.4635",
    "kind": "arxiv",
    "version": 1
  }
}