Pith Number

pith:DRMRM5AN

pith:2014:DRMRM5AN4RT7Z5Z5WP6I622TJM

not attested not anchored not stored refs pending

Solution to time-energy costs of quantum channels

Chi-Hang Fred Fung, Chi-Kwong Li, H. F. Chau, Nung-sing Sze

arxiv:1404.4134 v2 · 2014-04-16 · 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{DRMRM5AN4RT7Z5Z5WP6I622TJM}

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	2026-05-18T02:25:56.209459Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1c5916740de467fcf73db3fc8f6b534b36e3973b969135b496661df393bc3e41

Aliases

arxiv: 1404.4134 · arxiv_version: 1404.4134v2 · doi: 10.48550/arxiv.1404.4134 · pith_short_12: DRMRM5AN4RT7 · pith_short_16: DRMRM5AN4RT7Z5Z5 · pith_short_8: DRMRM5AN

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/DRMRM5AN4RT7Z5Z5WP6I622TJM \
  | 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: 1c5916740de467fcf73db3fc8f6b534b36e3973b969135b496661df393bc3e41

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9666504df9adb296a349c210103c3358857bb79f0e24379c2fa833e9580ca393",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2014-04-16T04:30:58Z",
    "title_canon_sha256": "56e6f423fbd2385092fbf3f5a7d2e69609351d699729e1724954a4fe1b6ba734"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1404.4134",
    "kind": "arxiv",
    "version": 2
  }
}