Pith Number

pith:3FAS5F5T

pith:2018:3FAS5F5TXEQR7QEKHBT6WMZSNM

not attested not anchored not stored refs pending

Implementing positive maps with multiple copies of an input state

Akihito Soeda, Marco T\'ulio Quintino, Mio Murao, Qingxiuxiong Dong

arxiv:1808.05788 v2 · 2018-08-17 · 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{3FAS5F5TXEQR7QEKHBT6WMZSNM}

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	2026-05-17T23:44:38.105758Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d9412e97b3b9211fc08a3867eb33326b326f2b6a614c5bd565c6f7e0ac1f2f84

Aliases

arxiv: 1808.05788 · arxiv_version: 1808.05788v2 · doi: 10.48550/arxiv.1808.05788 · pith_short_12: 3FAS5F5TXEQR · pith_short_16: 3FAS5F5TXEQR7QEK · pith_short_8: 3FAS5F5T

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/3FAS5F5TXEQR7QEKHBT6WMZSNM \
  | 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: d9412e97b3b9211fc08a3867eb33326b326f2b6a614c5bd565c6f7e0ac1f2f84

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "de1ea2bf72e135bc0f9a8bf38d198cd0f4bedcbca35d480cc21cd71b04434d90",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2018-08-17T08:15:40Z",
    "title_canon_sha256": "aff6726adb5a3d7e9349f668163dc49f5cccd9bcad133e777859c4c4e9dca958"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.05788",
    "kind": "arxiv",
    "version": 2
  }
}