Pith Number

pith:2M25XYFL

pith:2013:2M25XYFLWZHAIQWKTHF4XQGF43

not attested not anchored not stored refs pending

Comment on "Sudden change in quantum discord accompanying the transition from bound to free entanglement"

Preeti Parashar, Swapan Rana

arxiv:1309.6890 v1 · 2013-09-26 · 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{2M25XYFLWZHAIQWKTHF4XQGF43}

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	2026-05-18T03:12:09.843724Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d335dbe0abb64e0442ca99cbcbc0c5e6cc1a71939a60ae77ae2e5970136b1f5f

Aliases

arxiv: 1309.6890 · arxiv_version: 1309.6890v1 · doi: 10.48550/arxiv.1309.6890 · pith_short_12: 2M25XYFLWZHA · pith_short_16: 2M25XYFLWZHAIQWK · pith_short_8: 2M25XYFL

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/2M25XYFLWZHAIQWKTHF4XQGF43 \
  | 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: d335dbe0abb64e0442ca99cbcbc0c5e6cc1a71939a60ae77ae2e5970136b1f5f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fc23774b19d0f9ba308ec065a1ce6343fc62ce4038a0b46c4b515d7ec1e53110",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2013-09-26T13:37:00Z",
    "title_canon_sha256": "86f68f7ff988ec75039e59d1fdcc94f45e968cab3b7f39d9f58597b9f2e9557c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.6890",
    "kind": "arxiv",
    "version": 1
  }
}