Pith Number

pith:ZECWM6YY

pith:2015:ZECWM6YYCG3NQLYQE7JGRI6Q7L

not attested not anchored not stored refs pending

Quantum Estimation via Sequential Measurements

Airi N. Kato, Daniel Burgarth, Kazuya Yuasa, Vittorio Giovannetti

arxiv:1507.07634 v2 · 2015-07-28 · 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	2026-05-18T01:25:46.815288Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c905667b1811b6d82f1027d268a3d0faeb7c2c0e6e4119188f657793c2d86621

Aliases

arxiv: 1507.07634 · arxiv_version: 1507.07634v2 · doi: 10.48550/arxiv.1507.07634 · pith_short_12: ZECWM6YYCG3N · pith_short_16: ZECWM6YYCG3NQLYQ · pith_short_8: ZECWM6YY

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/ZECWM6YYCG3NQLYQE7JGRI6Q7L \
  | 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: c905667b1811b6d82f1027d268a3d0faeb7c2c0e6e4119188f657793c2d86621

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "56b354f149df2788701af431bb743b20756c8446af71d1aad8e4edf38495aa50",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2015-07-28T03:47:58Z",
    "title_canon_sha256": "65e1ba86bb5e1c25ec65bd8734a41f47da97f180fa36e5f5b5b8920017d3664a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.07634",
    "kind": "arxiv",
    "version": 2
  }
}