Pith Number

pith:P2ML2FCB

pith:2012:P2ML2FCB5PTUG7WXWC4QN32K3F

not attested not anchored not stored refs pending

Coherent perfect absorbers for transient, periodic or chaotic optical fields: time-reversed lasers beyond threshold

G. Della Valle, S. Longhi

arxiv:1203.5033 v2 · 2012-03-22 · 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{P2ML2FCB5PTUG7WXWC4QN32K3F}

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	2026-05-18T01:58:04.452493Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7e98bd1441ebe7437ed7b0b906ef4ad97b5f9dfc46083ded1e28f2eda6810888

Aliases

arxiv: 1203.5033 · arxiv_version: 1203.5033v2 · doi: 10.48550/arxiv.1203.5033 · pith_short_12: P2ML2FCB5PTU · pith_short_16: P2ML2FCB5PTUG7WX · pith_short_8: P2ML2FCB

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/P2ML2FCB5PTUG7WXWC4QN32K3F \
  | 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: 7e98bd1441ebe7437ed7b0b906ef4ad97b5f9dfc46083ded1e28f2eda6810888

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "95c33286705984cc70e45925e4ee899474c3e32ef11953d012560c394dcfb9b8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2012-03-22T16:30:08Z",
    "title_canon_sha256": "36229684f0e996a1c0353c6175212bb6a021853cc35c42367e18f91745fadf24"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1203.5033",
    "kind": "arxiv",
    "version": 2
  }
}