Pith Number

pith:64SQZHYJ

pith:2015:64SQZHYJLJA3YXORIUXEAQZP2D

not attested not anchored not stored refs pending

Space qualified nanosatellite electronics platform for photon pair experiments

Alexander Ling, Cliff Cheng, Rakhitha Chandrasekara, Yue Chuan Tan

arxiv:1505.06523 v1 · 2015-05-25 · physics.ins-det · 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{64SQZHYJLJA3YXORIUXEAQZP2D}

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	2026-07-05T06:31:48.060329Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f7250c9f095a41bc5dd1452e40432fd0e32c1ed82179af0e162dd1581408dde0

Aliases

arxiv: 1505.06523 · arxiv_version: 1505.06523v1 · doi: 10.48550/arxiv.1505.06523 · pith_short_12: 64SQZHYJLJA3 · pith_short_16: 64SQZHYJLJA3YXOR · pith_short_8: 64SQZHYJ

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/64SQZHYJLJA3YXORIUXEAQZP2D \
  | 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: f7250c9f095a41bc5dd1452e40432fd0e32c1ed82179af0e162dd1581408dde0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3219b2eef86860b47729937ed888950b779eb490cba705e08dbc01b69f34844b",
    "cross_cats_sorted": [
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.ins-det",
    "submitted_at": "2015-05-25T02:05:52Z",
    "title_canon_sha256": "5d7f35cf2fef46bfe4201f3c32e4a43d38f3c7e7bbb3d86c58e52fee3668febd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.06523",
    "kind": "arxiv",
    "version": 1
  }
}