Pith Number

pith:AKJFLVM4

pith:2012:AKJFLVM4KPB52EQEYYECJU6HAX

not attested not anchored not stored refs pending

Errors in quantum tomography: diagnosing systematic versus statistical errors

Nathan K. Langford

arxiv:1212.2982 v1 · 2012-12-12 · 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{AKJFLVM4KPB52EQEYYECJU6HAX}

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	2026-05-18T01:52:39.269090Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

029255d59c53c3dd1204c60824d3c705e0dd2986dd0e665e3dfa933632e7dd6e

Aliases

arxiv: 1212.2982 · arxiv_version: 1212.2982v1 · doi: 10.48550/arxiv.1212.2982 · pith_short_12: AKJFLVM4KPB5 · pith_short_16: AKJFLVM4KPB52EQE · pith_short_8: AKJFLVM4

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/AKJFLVM4KPB52EQEYYECJU6HAX \
  | 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: 029255d59c53c3dd1204c60824d3c705e0dd2986dd0e665e3dfa933632e7dd6e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bd2cbdf4733a8a9367eef466a6ca163ad07553dfe44097491e5b60d19f68e938",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2012-12-12T21:04:01Z",
    "title_canon_sha256": "a1d55fd84b4aeac6c50fac8ff3a28d7a185dcad2bc57c296a26be2626ae7b95e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1212.2982",
    "kind": "arxiv",
    "version": 1
  }
}