Pith Number

pith:HX5P5PMG

pith:2004:HX5P5PMGNJFZK7GDVYYZCRE72Y

not attested not anchored not stored refs pending

Controlling a group velocity of light by magnetic field

(2) Department of Physics, Institute for Quantum Studies, M.O.Scully (2) ((1) V. A. Fock Physics Institute, Russia, St.Petersburg, Texas A&M University, T.Yu.Golubeva (1), USA), Yu.M.Golubev (1), Yu.V.Rostovtsev (2)

arxiv:quant-ph/0407180 v1 · 2004-07-22 · 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{HX5P5PMGNJFZK7GDVYYZCRE72Y}

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	2026-05-18T03:03:57.740669Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3dfafebd866a4b957cc3ae3191449fd615d6c82ec0c737087c140bd5c6d6306e

Aliases

arxiv: quant-ph/0407180 · arxiv_version: quant-ph/0407180v1 · doi: 10.48550/arxiv.quant-ph/0407180 · pith_short_12: HX5P5PMGNJFZ · pith_short_16: HX5P5PMGNJFZK7GD · pith_short_8: HX5P5PMG

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/HX5P5PMGNJFZK7GDVYYZCRE72Y \
  | 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: 3dfafebd866a4b957cc3ae3191449fd615d6c82ec0c737087c140bd5c6d6306e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "820eae70cb83ee370f2ce2c87fc249f3c07fe3975aa803a2f54d4409a854356d",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2004-07-22T14:26:29Z",
    "title_canon_sha256": "e84a5ec6b5a3aee5eadbdd81f9874e16a21d04f5d6f4f30c84e7fe694bcc307c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0407180",
    "kind": "arxiv",
    "version": 1
  }
}