Pith Number

pith:M7IR6QGE

pith:2018:M7IR6QGEQWXJKVIMQFXDJXR7MR

not attested not anchored not stored refs pending

On the inverse problem of source reconstruction from coherence measurements

Alexandru Tamasan, Andre Beckus, Aristide Dogariu, Ayman F. Abouraddy, George K. Atia

arxiv:1802.02680 v2 · 2018-02-08 · physics.optics · eess.SP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{M7IR6QGEQWXJKVIMQFXDJXR7MR}

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	2026-05-18T00:13:50.788457Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

67d11f40c485ae95550c816e34de3f6459856d51fea260ea3fc1bdd412dd4f6f

Aliases

arxiv: 1802.02680 · arxiv_version: 1802.02680v2 · doi: 10.48550/arxiv.1802.02680 · pith_short_12: M7IR6QGEQWXJ · pith_short_16: M7IR6QGEQWXJKVIM · pith_short_8: M7IR6QGE

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/M7IR6QGEQWXJKVIMQFXDJXR7MR \
  | 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: 67d11f40c485ae95550c816e34de3f6459856d51fea260ea3fc1bdd412dd4f6f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "eea70ff4e4a1fea83b3fbb7bfb544430ea8b06812752ef6aac51fb7766564c06",
    "cross_cats_sorted": [
      "eess.SP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2018-02-08T00:41:24Z",
    "title_canon_sha256": "41b54d085dc336d2c3c0ecc2b6b9c2f3da979ea9ad33db12b653830b707b4a44"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.02680",
    "kind": "arxiv",
    "version": 2
  }
}