Pith Number

pith:QNNN5FYJ

pith:2015:QNNN5FYJ2UE56CYOARYPR2YPK2

not attested not anchored not stored refs pending

Hyperentanglement concentration for time-bin and polarization hyperentangled photons

Shohini Ghose, Xihan Li

arxiv:1502.02891 v3 · 2015-02-10 · 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{QNNN5FYJ2UE56CYOARYPR2YPK2}

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	2026-05-18T02:18:51.263544Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

835ade9709d509df0b0e0470f8eb0f56b8516cb852c2911c5136b3b9c4769016

Aliases

arxiv: 1502.02891 · arxiv_version: 1502.02891v3 · doi: 10.48550/arxiv.1502.02891 · pith_short_12: QNNN5FYJ2UE5 · pith_short_16: QNNN5FYJ2UE56CYO · pith_short_8: QNNN5FYJ

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/QNNN5FYJ2UE56CYOARYPR2YPK2 \
  | 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: 835ade9709d509df0b0e0470f8eb0f56b8516cb852c2911c5136b3b9c4769016

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "57b7bb0e7f310042138507b6ac20637185ccbe7793f5e6aeed0c8558e1da32f0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2015-02-10T13:19:28Z",
    "title_canon_sha256": "261bc88005d5ef9bd4e6791f8997ed18bf1249a9d6e771b67d8057049453df15"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.02891",
    "kind": "arxiv",
    "version": 3
  }
}