Pith Number

pith:HCZ7BPHN

pith:2019:HCZ7BPHNKJ43JV2WOWTJYER3BP

not attested not anchored not stored refs pending

Lorentz-invariant mass and entanglement of biphoton states

D. A. Grigoriev, M. V. Fedorov, S. V. Vintskevich

arxiv:1905.03459 v1 · 2019-05-09 · 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{HCZ7BPHNKJ43JV2WOWTJYER3BP}

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	2026-05-17T23:42:19.224382Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

38b3f0bced5279b4d75675a69c123b0be07a05f1ddb4cb629abba87edf8b5d7a

Aliases

arxiv: 1905.03459 · arxiv_version: 1905.03459v1 · doi: 10.48550/arxiv.1905.03459 · pith_short_12: HCZ7BPHNKJ43 · pith_short_16: HCZ7BPHNKJ43JV2W · pith_short_8: HCZ7BPHN

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/HCZ7BPHNKJ43JV2WOWTJYER3BP \
  | 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: 38b3f0bced5279b4d75675a69c123b0be07a05f1ddb4cb629abba87edf8b5d7a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f69a0558c37c2d50bab7acda6d2c3e5a483278cde5a25abdcd815258594f50f1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2019-05-09T06:49:00Z",
    "title_canon_sha256": "150ab69818cb251b1a9479e02196f214a9c422311708165949c432b5310a5f42"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.03459",
    "kind": "arxiv",
    "version": 1
  }
}