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Paradi
Exo-Intelligence Atlas
Paradi / IAA reply protocol
No reply should be treated as a unilateral hobby project
Contact Protocols / protocol
IAA reply protocol
The reply protocol makes the governance point explicit: if humanity ever decides to respond, it should not be done casually or by a single actor acting for everyone.
Contact Protocols1995+
No reply should be treated as a unilateral hobby project
This is the cleanest public answer to 'how do we reach out?' that is still institutionally serious.
Key points
The message should reflect broad human interests.
International consultation is part of the protocol, not a delay tactic.
Long delays between exchanges demand durable institutions.
Reference ledger
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Contact Protocolsprotocol
IAA post-detection protocol
1989+
Verify first, announce carefully, coordinate globally
The IAA post-detection declaration is one of the clearest public documents outlining what responsible behavior after a candidate detection should look like.
2 referencesOpen dossier
Contact Protocolsprotocol
Draft principles for sending communications to ETI
2025
Outbound messaging has an active governance debate
The draft position paper captures the still-open argument over whether, when, and how humanity should deliberately send messages toward extraterrestrial intelligence.
2 referencesOpen dossier
Contact Protocolsprotocol
Deep Space Optical Communications
2022+
Laser communication is already real at deep-space engineering scale
DSOC is not a SETI system, but it demonstrates the practicality and constraints of high-rate optical links across large distances.
2 referencesOpen dossier