Pith Number

pith:77HEWIUW

pith:2019:77HEWIUWZMVO4L5RW4EMJ3JZ3I

not attested not anchored not stored refs pending

Entanglement in Three Coupled Harmonic Oscillators

Abdeldjalil Merdaci, Ahmed Jellal

arxiv:1909.01997 v2 · 2019-09-04 · quant-ph · hep-th

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{77HEWIUWZMVO4L5RW4EMJ3JZ3I}

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	2026-07-05T00:36:33.430580Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ffce4b2296cb2aee2fb1b708c4ed39da08d27bb272672434d74d136d312eb400

Aliases

arxiv: 1909.01997 · arxiv_version: 1909.01997v2 · doi: 10.48550/arxiv.1909.01997 · pith_short_12: 77HEWIUWZMVO · pith_short_16: 77HEWIUWZMVO4L5R · pith_short_8: 77HEWIUW

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/77HEWIUWZMVO4L5RW4EMJ3JZ3I \
  | 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: ffce4b2296cb2aee2fb1b708c4ed39da08d27bb272672434d74d136d312eb400

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "19a6b898e1c3e1fa254f144b053d1d73067f92064292b7fd1e04655145e34f8f",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2019-09-04T16:08:07Z",
    "title_canon_sha256": "be7fb8829e7808ac073d9d5f79c476c245b62c8e12a9a47e1161d5fe52e5b028"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1909.01997",
    "kind": "arxiv",
    "version": 2
  }
}