Pith Number

pith:TJ7BGHO2

pith:2015:TJ7BGHO2WVZ3TGO5VWNNKJ2ZIO

not attested not anchored not stored refs pending

Statistically efficient tomography of low rank states with incomplete measurements

Anirudh Acharya, Madalin Guta, Theodore Kypraios

arxiv:1510.03229 v2 · 2015-10-12 · quant-ph · math-ph · math.MP · stat.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TJ7BGHO2WVZ3TGO5VWNNKJ2ZIO}

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	2026-05-18T01:04:45.684958Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9a7e131ddab573b999ddad9ad5275943af7015a465c89cd4b766556af6b2cf7e

Aliases

arxiv: 1510.03229 · arxiv_version: 1510.03229v2 · doi: 10.48550/arxiv.1510.03229 · pith_short_12: TJ7BGHO2WVZ3 · pith_short_16: TJ7BGHO2WVZ3TGO5 · pith_short_8: TJ7BGHO2

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/TJ7BGHO2WVZ3TGO5VWNNKJ2ZIO \
  | 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: 9a7e131ddab573b999ddad9ad5275943af7015a465c89cd4b766556af6b2cf7e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "31c3cd5900c476b27bf3308ebcd2e88741e7c27dda34d3121374d1695b91d7f0",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP",
      "stat.AP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2015-10-12T11:11:43Z",
    "title_canon_sha256": "fe0f146f6e13b1c9597478c1ea6de1d9e50ed09cf40d530b774515a61a548f20"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1510.03229",
    "kind": "arxiv",
    "version": 2
  }
}