Pith Number

pith:4E4GPT37

pith:2019:4E4GPT37CATHT4CWDDLN7MPZWN

not attested not anchored not stored refs pending

Density Matrix Reconstructions in Ultrafast Transmission Electron Microscopy: Uniqueness, Stability, and Convergence Rates

Claus Ropers, Cong Shi, Thorsten Hohage

arxiv:1907.03438 v2 · 2019-07-08 · math.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{4E4GPT37CATHT4CWDDLN7MPZWN}

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	2026-07-05T00:41:31.548693Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e13867cf7f102679f05618d6dfb1f9b37afe0c657c4883e0eb620d6154125520

Aliases

arxiv: 1907.03438 · arxiv_version: 1907.03438v2 · doi: 10.48550/arxiv.1907.03438 · pith_short_12: 4E4GPT37CATH · pith_short_16: 4E4GPT37CATHT4CW · pith_short_8: 4E4GPT37

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/4E4GPT37CATHT4CWDDLN7MPZWN \
  | 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: e13867cf7f102679f05618d6dfb1f9b37afe0c657c4883e0eb620d6154125520

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8570b74b678d4295b09466c8ec078607e23cf8c02b6bf2c8dd6d2b32cd7cbedf",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2019-07-08T07:44:17Z",
    "title_canon_sha256": "e81b9d6612597f2ca2641c9b6b76d2beb764a7b4f278fb5d3cfd8dc036b08e4a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.03438",
    "kind": "arxiv",
    "version": 2
  }
}