Pith Number

pith:BOVSOTNC

pith:2021:BOVSOTNCYYSWAKD6R2KQELI7LR

not attested not anchored not stored refs pending

Phase Retrieval and Design with Automatic Differentiation

Alison Wong, Barnaby Norris, Benjamin Pope, Chris Betters, Louis Desdoigts, Peter Tuthill

arxiv:2107.00952 v1 · 2021-07-02 · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BOVSOTNCYYSWAKD6R2KQELI7LR}

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	2026-07-05T03:10:11.644391Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0bab274da2c62560287e8e95022d1f5c680851f7e3fcd4a3f46f7e44cf3f9c7a

Aliases

arxiv: 2107.00952 · arxiv_version: 2107.00952v1 · doi: 10.48550/arxiv.2107.00952 · pith_short_12: BOVSOTNCYYSW · pith_short_16: BOVSOTNCYYSWAKD6 · pith_short_8: BOVSOTNC

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/BOVSOTNCYYSWAKD6R2KQELI7LR \
  | 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: 0bab274da2c62560287e8e95022d1f5c680851f7e3fcd4a3f46f7e44cf3f9c7a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b5352aa6959c3b62ece150ae792335b5e1ee57ec5c99ef31cff49e4422c7977e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2021-07-02T10:33:03Z",
    "title_canon_sha256": "5378144aa1cebd241d87c1bb86b3f94d334c3e146b89194c001534ee59cb2c30"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2107.00952",
    "kind": "arxiv",
    "version": 1
  }
}