Pith Number

pith:CT6RH7XP

pith:2019:CT6RH7XP2KVJGG5Q3MUSC3BXJX

not attested not anchored not stored refs pending

Efficient quantum state tomography with auxiliary Hilbert space

David P. Pappas, Fuli Li, Hong Gao, Junling Long, Pei Zhang, Ruifeng Liu, Russell E. Lake

arxiv:1908.00577 v2 · 2019-08-01 · quant-ph · physics.optics

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CT6RH7XP2KVJGG5Q3MUSC3BXJX}

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	2026-07-04T23:51:47.191562Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

14fd13feefd2aa931bb0db29216c374dea21ce7c6ea5a2f22364cc86f669f51a

Aliases

arxiv: 1908.00577 · arxiv_version: 1908.00577v2 · doi: 10.48550/arxiv.1908.00577 · pith_short_12: CT6RH7XP2KVJ · pith_short_16: CT6RH7XP2KVJGG5Q · pith_short_8: CT6RH7XP

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/CT6RH7XP2KVJGG5Q3MUSC3BXJX \
  | 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: 14fd13feefd2aa931bb0db29216c374dea21ce7c6ea5a2f22364cc86f669f51a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "85d4917500fe02146b7b5977dcd637b1b4555f27aae368acab66e2538ab023f0",
    "cross_cats_sorted": [
      "physics.optics"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2019-08-01T18:45:31Z",
    "title_canon_sha256": "38fa2fd974fea984afebebea84ef699db2b6cbe7f6cf1fd5c66ec5a532bc3345"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.00577",
    "kind": "arxiv",
    "version": 2
  }
}