Pith Number

pith:Z3FEB47T

pith:2011:Z3FEB47TFCRJ26W2POBGTJX6U4

not attested not anchored not stored refs pending

Information criteria for efficient quantum state estimation

J. O. S. Yin, S. J. van Enk

arxiv:1103.3251 v2 · 2011-03-16 · 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{Z3FEB47TFCRJ26W2POBGTJX6U4}

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	2026-05-18T02:02:50.687168Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ceca40f3f328a29d7ada7b8269a6fea73d7b2ffee50dcdb58ace6cec46cb90d3

Aliases

arxiv: 1103.3251 · arxiv_version: 1103.3251v2 · doi: 10.48550/arxiv.1103.3251 · pith_short_12: Z3FEB47TFCRJ · pith_short_16: Z3FEB47TFCRJ26W2 · pith_short_8: Z3FEB47T

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/Z3FEB47TFCRJ26W2POBGTJX6U4 \
  | 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: ceca40f3f328a29d7ada7b8269a6fea73d7b2ffee50dcdb58ace6cec46cb90d3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "28d115632c30441377aebf4e24e2d487b377e47c5a5927c78714228021a9bbca",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2011-03-16T18:33:54Z",
    "title_canon_sha256": "d50526c42ff9cbd6d0ba2d859649de316736de48ec2cada42d8b59b693a48f9e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1103.3251",
    "kind": "arxiv",
    "version": 2
  }
}