{"id":22691,"recorded_at":"2026-10-26T14:35:49.591614Z","observed_at":"2026-10-26T14:35:49.591563Z","subject_kind":"source_record","subject":"mcp_registry:dev.costheta/costheta","kind":"listing","method":"baseline/1","body":{"endpoints":[["mcp","https://costheta.dev/mcp"],["web","https://costheta.dev/"]],"name":"costheta","owner_address":null,"raw":{"_meta":{"io.modelcontextprotocol.registry/official":{"isLatest":true,"publishedAt":"2026-08-12T08:20:11.052457Z","status":"active","statusChangedAt":"2026-08-12T08:20:11.052457Z","updatedAt":"2026-08-12T08:20:11.052457Z"}},"server":{"$schema":"https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json","_meta":{"io.modelcontextprotocol.registry/publisher-provided":{"full_description":"Verifiable physical randomness from cosmic-ray muon detections. Seal your options as a hash, the next detected muon determines the outcome, receive a certificate dual-signed with Ed25519 and ML-DSA. Free public beacon; paid decisions settled per call via x402 in USDC, no account or API key. Throughput is bounded by physics: about one event every few seconds. Not for cryptographic key material. The certificate format supports multi-node attestation; the federation protocol is published as an open proposal. Today: one detector, one operator, one attestation per certificate.","tool_descriptions":{"costheta_decide":"Paid commit-and-reveal decision. Send a hash of your options; the next detected muon selects one and you receive a publicly verifiable, dual-signed certificate binding your commitment to that physical event. Latency up to ~30 s. $0.02 via x402/USDC.","costheta_random":"Free public beacon. Random bits derived from muon arrival timestamps on the latest signed pulse. Shared by all callers until the next muon arrives; for private, request-bound outcomes use costheta_decide. Not for cryptographic keys.","costheta_witness":"Paid timestamp attestation. Binds any hash you send to the next detected muon and signs the pair: a timestamp anchored to a physical detection, not a server clock. $0.02 via x402/USDC."}}},"description":"Verifiable physical randomness from cosmic-ray detections. Free beacon, paid signed decisions.","name":"dev.costheta/costheta","remotes":[{"type":"streamable-http","url":"https://costheta.dev/mcp"}],"repository":{"source":"github","url":"https://github.com/costhetadev/costheta-verify"},"title":"costheta","version":"0.1.0","websiteUrl":"https://costheta.dev"}},"source":"mcp_registry","summary":"Verifiable physical randomness from cosmic-ray detections. Free beacon, paid signed decisions."},"body_sha256":"c471820dae03698be652151fb8b4cf62575ef88f50cc59439ec647f3d7cdac32","prev_id":null,"leaf":"0xaffad084a7bbec27c0a7fb69b7fe41f5855d22e297c985c179c0f80a83855ff6","leaf_text":"{\"body\":\"c471820dae03698be652151fb8b4cf62575ef88f50cc59439ec647f3d7cdac32\",\"id\":22691,\"kind\":\"listing\",\"method\":\"baseline/1\",\"observed_us\":1793025349591563,\"prev\":null,\"subject\":\"mcp_registry:dev.costheta/costheta\",\"subject_kind\":\"source_record\"}","day":{"day":"2026-10-26","leaves":296695,"root":"0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8","chained":"0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a","anchor_chain":"eip155:5042002","anchor_tx":"0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae","anchor_block":69251483},"proof":["0xaffb4a14857a9f6cd7ba617e9382cdd0e5860c41a19915c8eac166c1f0f34ae5","0xa0701d596e5b4a425f9f8b6a36e15a0fdd6be02d35e946a2fa2db121f70719bd","0x073c019636aca8b57395cf84d73bef31da3c17dfd4abd199bf1db83dfd6815be","0x9908423d2206b19f2380d99f0bf00b5758cf0e22c76300b1417b0445f73330d3","0xa0bd6740265a988e2b6a06c10fed72499995b6639430952fc8cd2225bcdb103b","0xcba77d3b01b38abaebe3c048495c268562683bd9e11ae8f25e7ac15336708cc7","0x4806d2eb6993d3ff6dfce224ce6147b5f93d7d216b0b8a49740de53b90cda144","0x8ecb8a2a82ac1cdbe71dadcceb250f92a19f382dcdd89f784e7e4fca6249fe8a","0x093577cc3103152dbae7a3e2746efa7cf14907771bf3a1d81b476910716da144","0x88e14554875d47fe3e9d547b6e116a59cb4b1bba1165fecb62ab9dc0789b5291","0x3bebef69be15ae49fdf78639d05bdb957a983cd3565294a33f1d0a8a41913db8","0xd17258d4f01d074dcaf38f36218b36058144c3d50c3b488953a815c54d6674d2","0xe292b5a99219f136bce6647ce74b21240a1c7331d2475b1839220fd363c94217","0x3b4dba7d874fc323b0a364140a9c60f37bf547fe671897653118a9873fe03420","0x1a74ed3b3756b9cd946da49701bcec120ec88645013da99fa9eea60b39e1a570","0x123ec8bee20ddc55223eeef5a4f4d6c4b6416515adbb911c56759f5cde56e452","0xd0651cb9bc8155eb52b5247d506e74b8a935057dc190ba52091702ac25ed3a40","0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f","0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a"]}