Demo · Technosignature

The Dvali-Osmanov Signal Chain

Four tools trace the primary OCS technosignature: kugelblitz computers → democratic Hawking emission → neutrino flux at Earth → multi-messenger detection threshold.

3 tools · ~15 min · Primary OCS falsifiable prediction
⚙ Choose a kugelblitz configuration

Both scenarios describe a Phase 5 OCS civilisation operating kugelblitz computers. They differ in whether it operates many small units or a single larger one — which changes the Hawking temperature, evaporation lifetime, and signal character.

01
Step 1 · The Source
Kugelblitz Hawking Emission

A Phase 5 OCS civilisation operates kugelblitz computers — black holes formed from focused radiation, which evaporate via Hawking radiation and emit particles democratically across all Standard Model species. The neutrino channel is particularly valuable: neutrinos escape the IMBH accretion environment without absorption, unlike photons. Dvali & Osmanov (2023) showed that for kugelblitz with THawking >> 1 GeV, approximately 45% of total Hawking power is emitted as neutrinos. At M = 10&sup8; kg (Scenario A), TH ≈ 10¹⁵ K and total Hawking power ≈ 1.6×10¹⁴ W. At M = 10¹⁰ kg (Scenario B), TH ≈ 10¹³ K and Hawking power ≈ 1.6×10¹⁰ W — but the longer evaporation time of ~10&sup8; years makes it a viable persistent signal source.

Open Kugelblitz Estimator → M = 10&sup8; kg · T_H ~10¹⁵ K · democratic SM emission Hawking 1974 Dvali-Osmanov 2023
Step payoff
The kugelblitz mass determines the Hawking temperature, which determines which SM species are emitted and with what spectrum. The neutrino fraction is ≈45% for T_H ≫ 1 GeV (Scenario A) and lower for cooler kugelblitz (Scenario B).
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Step 2 · Propagation to Earth
Signal at 5.49 kpc

The neutrino flux from OC depends on total emitted power and the inverse-square law. A 10&sup8; kg kugelblitz emits ~1.6×10¹⁴ W total Hawking power, of which ~7.2×10¹³ W is neutrinos. At 5.49 kpc, the isotropic flux is ~2.5×10−²⁸ GeV/cm²/s — 16 orders of magnitude below current IceCube sensitivity. A detectable signal would require ~10¹⁰ simultaneous kugelblitz, or a single much smaller one (M ~ 1 tonne) with tevap ~ seconds. This tool lets you explore the detectability landscape by varying kugelblitz count, mass, and distance. The key result: the neutrino flux is real but buried, and only a large-scale coordinated fleet or a dedicated tonne-scale kugelblitz burst would cross the IceCube threshold.

Open Neutrino SETI → logL=28 · logDist=1.74 · OC distance 5.49 kpc Inverse square law IceCube sensitivity
Step payoff
The 16-order-of-magnitude gap between signal and threshold is the falsification gap: either Phase 5 is not active, the kugelblitz fleet is far larger than estimated, or the prediction is wrong. KM3NeT/ARCA has better southern-sky sensitivity than IceCube and is the primary near-term instrument.
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Step 3 · The Detection Threshold
What Would a Detection Require?

A multi-messenger detection of the kugelblitz signal requires simultaneous excesses in the neutrino, gamma-ray, and possibly gravitational-wave channels. For the Dvali-Osmanov scenario, the primary channel is neutrino — but an OC-direction neutrino excess would trigger follow-up in Fermi-LAT (gamma-ray MSP background check) and MeerKAT (radio). The false-alarm probability from a single-channel detection is unacceptably high; the multi-messenger requirement raises the bar but also provides strong circumstantial evidence if multiple channels register simultaneously. A tonne-scale kugelblitz evaporating over seconds would also produce a gravitational-wave burst detectable by LIGO within ~0.1 pc. The multi-messenger alert tool maps the detection thresholds across all channels as a function of source distance and power.

Open Multi-Messenger Alert → OC direction · neutrino + gamma-ray + radio channels Dvali-Osmanov 2023 KM3NeT/ARCA
Step payoff
Multi-messenger coincidence is the only credible detection pathway. Single-channel neutrino excess from OC direction has too high a false-alarm rate from the MSP background; a coincident gamma-ray or GW signal would eliminate that ambiguity.
⚖ Primary Falsifiable Prediction

The Dvali-Osmanov scenario is the OCS’s primary falsifiable prediction: a Phase 5 civilisation operating kugelblitz computers would produce a steady-state neutrino excess from the direction of OC. The current gap between predicted signal and IceCube sensitivity is ~16 orders of magnitude — so either the civilisation is not at Phase 5, the kugelblitz mass is much lower than estimated, or the prediction is wrong.

A null result from a dedicated OC-direction continuous-wave neutrino search sets a meaningful upper limit on Phase 5 activity. KM3NeT/ARCA, with better southern-sky sensitivity, is the primary instrument for this search. Fermi-LAT data already constrains the gamma-ray channel at OC’s position from existing MSP population studies; a kugelblitz gamma-ray excess would appear as an anomalous spectral hardening above the MSP power-law.

The falsification logic is clean: a positive detection in two or more channels from the OC direction would be extraordinary evidence. A null result in KM3NeT/ARCA at design sensitivity rules out Phase 5 operation above a calculable threshold. For the broader technosignature landscape and all falsifiable OCS predictions, see the Falsification & Observational Roadmap.

EPISTEMIC TIERS: Established = peer-reviewed physics within the standard formulation. Debated = active disagreement in the published literature. Theoretical = published framework, awaiting decisive observation.