Pith Number

pith:MYNM6RWV

pith:2012:MYNM6RWVMZ5OPYY5SZW4TGSRQ2

not attested not anchored not stored refs pending

Augmented projections for ptychographic imaging

Andre Schirotzek, Chao Yang, Filipe Maia, Hau-Tieng Wu, Stefano Marchesini

arxiv:1209.4924 v5 · 2012-09-21 · physics.optics · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MYNM6RWVMZ5OPYY5SZW4TGSRQ2}

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	2026-05-18T03:11:22.009487Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

661acf46d5667ae7e31d966dc99a5186be8e5e321b2782ac430c2a7ddaefed18

Aliases

arxiv: 1209.4924 · arxiv_version: 1209.4924v5 · doi: 10.48550/arxiv.1209.4924 · pith_short_12: MYNM6RWVMZ5O · pith_short_16: MYNM6RWVMZ5OPYY5 · pith_short_8: MYNM6RWV

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/MYNM6RWVMZ5OPYY5SZW4TGSRQ2 \
  | 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: 661acf46d5667ae7e31d966dc99a5186be8e5e321b2782ac430c2a7ddaefed18

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "120ec2452d9cbcf9939844579d0e8306ffaeb9c6e481215737ceefe50f1880ee",
    "cross_cats_sorted": [
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2012-09-21T21:31:02Z",
    "title_canon_sha256": "5057cc55e9c23a9151719bd5fe97839e7f886f7203673246cd923459a35721f0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1209.4924",
    "kind": "arxiv",
    "version": 5
  }
}