Pith Number

pith:TW2BOQVO

pith:2009:TW2BOQVOXIU77NHFX4WZ3RHSGQ

not attested not anchored not stored refs pending

Entanglement in Massive Coupled Oscillators

N.L. Harshman, W.F. Flynn

arxiv:0912.4603 v4 · 2009-12-23 · quant-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{TW2BOQVOXIU77NHFX4WZ3RHSGQ}

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	2026-05-18T02:24:45.414590Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9db41742aeba29ffb4e5bf2d9dc4f234113786c68d4baba586d3b66810c291f4

Aliases

arxiv: 0912.4603 · arxiv_version: 0912.4603v4 · doi: 10.48550/arxiv.0912.4603 · pith_short_12: TW2BOQVOXIU7 · pith_short_16: TW2BOQVOXIU77NHF · pith_short_8: TW2BOQVO

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/TW2BOQVOXIU77NHFX4WZ3RHSGQ \
  | 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: 9db41742aeba29ffb4e5bf2d9dc4f234113786c68d4baba586d3b66810c291f4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1acb362f69410812fe85844f252a89becc463df9350e4bfccbdb8819ae3579c7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2009-12-23T11:00:42Z",
    "title_canon_sha256": "52b15f7eb0ed8054b041e2270947cd244a3c8446bf46e94efde6ec3b3a769333"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0912.4603",
    "kind": "arxiv",
    "version": 4
  }
}