Pith Number

pith:MPRZ7XPZ

pith:2011:MPRZ7XPZXASBMIVPROD64N75FC

not attested not anchored not stored refs pending

Protocols for Relay-Assisted Free-Space Optical Systems

Diomidis S. Michalopoulos, Emmanouil E. Kriezis, George K. Karagiannidis, Nestor D. Chatzidiamantis, Robert Schober

arxiv:1105.3835 v1 · 2011-05-19 · cs.IT · math.IT

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

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	2026-05-18T04:21:51.235182Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

63e39fddf9b8241622af8b87ee37fd289ca37ad73dbd24c4da4fa793e31657a1

Aliases

arxiv: 1105.3835 · arxiv_version: 1105.3835v1 · doi: 10.48550/arxiv.1105.3835 · pith_short_12: MPRZ7XPZXASB · pith_short_16: MPRZ7XPZXASBMIVP · pith_short_8: MPRZ7XPZ

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/MPRZ7XPZXASBMIVPROD64N75FC \
  | 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: 63e39fddf9b8241622af8b87ee37fd289ca37ad73dbd24c4da4fa793e31657a1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1b7ba277952154c4f4d1d4e9137c48b30a30484fb0a6078b0053957930dd723f",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2011-05-19T10:31:28Z",
    "title_canon_sha256": "d136ddb171ad73d16ffa9e87839f6d3a5d49d0785d924617cb727b3298a6dc62"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1105.3835",
    "kind": "arxiv",
    "version": 1
  }
}