Pith Number

pith:I7LC5VYX

pith:2012:I7LC5VYXPMKR3E3U3FJYOLSO27

not attested not anchored not stored refs pending

Heisenberg-style bounds for arbitrary estimates of shift parameters including prior information

Howard M. Wiseman, Michael J. W. Hall

arxiv:1201.4542 v2 · 2012-01-22 · 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{I7LC5VYXPMKR3E3U3FJYOLSO27}

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	2026-05-18T01:58:43.855091Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

47d62ed7177b151d9374d953872e4ed7dd22e2768b483169ac500718ed6bd709

Aliases

arxiv: 1201.4542 · arxiv_version: 1201.4542v2 · doi: 10.48550/arxiv.1201.4542 · pith_short_12: I7LC5VYXPMKR · pith_short_16: I7LC5VYXPMKR3E3U · pith_short_8: I7LC5VYX

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/I7LC5VYXPMKR3E3U3FJYOLSO27 \
  | 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: 47d62ed7177b151d9374d953872e4ed7dd22e2768b483169ac500718ed6bd709

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "926418b160bfd95d67d57635fd2ee7592aef76e8e1530fc7d60d114487d3d7fe",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2012-01-22T09:27:46Z",
    "title_canon_sha256": "38d0d2996b7d5b400ef3613583699fe85826a30fa3fcd7da83214bb42f3f0bf1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.4542",
    "kind": "arxiv",
    "version": 2
  }
}