Pith Number

pith:SWGHE4IM

pith:2015:SWGHE4IME7GTHV4PPMLYMFDA43

not attested not anchored not stored refs pending

Least-bias state estimation with incomplete unbiased measurements

B.-G. Englert, H. K. Ng, J. H. Chai, J. Rehacek, L. L. Sanchez-Soto, Y. S. Teo, Z. Hradil

arxiv:1509.07614 v1 · 2015-09-25 · quant-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SWGHE4IME7GTHV4PPMLYMFDA43}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T01:27:22.484506Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

958c72710c27cd33d78f7b17861460e6fffa8c3ae2a05d02969cf63d42de48b2

Aliases

arxiv: 1509.07614 · arxiv_version: 1509.07614v1 · doi: 10.48550/arxiv.1509.07614 · pith_short_12: SWGHE4IME7GT · pith_short_16: SWGHE4IME7GTHV4P · pith_short_8: SWGHE4IM

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/SWGHE4IME7GTHV4PPMLYMFDA43 \
  | 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: 958c72710c27cd33d78f7b17861460e6fffa8c3ae2a05d02969cf63d42de48b2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "28a5c15d4e346095858f824d36a87aa58261e16a7221771c8b6af1167339fb45",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2015-09-25T08:01:21Z",
    "title_canon_sha256": "8685e5754864475390cdebbb55d923a15fcaa9998ee50d926df5a27fa64db26b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.07614",
    "kind": "arxiv",
    "version": 1
  }
}