Pith Number

pith:SW2PVKTW

pith:2013:SW2PVKTWU47V5GDCSXVLOA5AP3

not attested not anchored not stored refs pending

Information amplification via postselection: A parameter estimation perspective

Naoki Yamamoto, Saki Tanaka

arxiv:1306.2409 v3 · 2013-06-11 · quant-ph

Open paper page JSON Open Graph Bundle Merged state What is a Pith Number?

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	2026-05-18T03:09:12.247598Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

95b4faaa76a73f5e986295eab703a07ef9bf1e16fb11b67f335ba3b8f9d27c93

Aliases

arxiv: 1306.2409 · arxiv_version: 1306.2409v3 · doi: 10.48550/arxiv.1306.2409 · pith_short_12: SW2PVKTWU47V · pith_short_16: SW2PVKTWU47V5GDC · pith_short_8: SW2PVKTW

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/SW2PVKTWU47V5GDCSXVLOA5AP3 \
  | 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: 95b4faaa76a73f5e986295eab703a07ef9bf1e16fb11b67f335ba3b8f9d27c93

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7693aba54355e2c519dbac06507b74bad5f527a93a6a333bb47784bbff3361b2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2013-06-11T02:34:58Z",
    "title_canon_sha256": "531c25611fbf43ac99cb791bd7868151bd1e948a6afaf88f99db91b8e1daa077"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1306.2409",
    "kind": "arxiv",
    "version": 3
  }
}