Pith Number

pith:COPQ5JXX

pith:2015:COPQ5JXX5FRB4GHCLUL27LJHV2

not attested not anchored not stored refs pending

Controlled rephasing of single collective spin excitations in a cold atomic quantum memory

Boris Albrecht, Georg Heinze, Hugues de Riedmatten, Matteo Cristiani, Pau Farrera

arxiv:1501.07559 v1 · 2015-01-29 · 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{COPQ5JXX5FRB4GHCLUL27LJHV2}

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	2026-05-18T01:29:46.584566Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

139f0ea6f7e9621e18e25d17afad27ae925bfa8b5cbb25f520ed7ee73e985e51

Aliases

arxiv: 1501.07559 · arxiv_version: 1501.07559v1 · doi: 10.48550/arxiv.1501.07559 · pith_short_12: COPQ5JXX5FRB · pith_short_16: COPQ5JXX5FRB4GHC · pith_short_8: COPQ5JXX

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/COPQ5JXX5FRB4GHCLUL27LJHV2 \
  | 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: 139f0ea6f7e9621e18e25d17afad27ae925bfa8b5cbb25f520ed7ee73e985e51

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "26e55d501393091b318a2da06f32a6e55273a420aaf2087055b679d94be5d973",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2015-01-29T19:42:11Z",
    "title_canon_sha256": "8d6ee1eb68c11867bf5618eb68d39470b070d072d2eb0dd9802b51f8aceab095"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1501.07559",
    "kind": "arxiv",
    "version": 1
  }
}