KAAY (1090 AM) is a commercial radio station in Little Rock, Arkansas, owned by Cumulus Media. It airs a Christian radio format of instruction and preaching, with most of the schedule made up of broke
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb37276b029844274d921940e8e92ffbc4ff8f160d62c75e59bbcef271a2467cb. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/799116b0-80ea-435b-8ffe-79e44d99142a.json and https://artists.proofprofile.net/proofs/artist/799116b0-80ea-435b-8ffe-79e44d99142a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4525846e4b8b41e85ff494220847ddab3b7ff78ff390b12d1085507030d1ace4. Chain 2 (Bitcoin): anchored in block 958369 (2026-07-17T07:58:40Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF011200509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f0eb543dfb0df8924ad268aa0e984c8b8a70e14b541cc31ee8098cd5bb62cb3. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF011200512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42bbf6c9947aa70e57fcd1c802fac418417fde23050e21b386df7f2405da8203. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF011200513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x476844fb41197b171676e793e77143bc65b59027be66ea7f331d7401ce3ec0ea. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF011200514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00b5d2f8a26646b6a4400e4d84c2dfdfdf134713deedb98419f346a7cb73c54e. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T13:41:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF011200515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69c7d4e9472d59c79f7016d25076342ad24a47988382e6635296e58c406b4cb3. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF011200516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8e938ac459788782482e8cd6a339fd8778058a95f939d8cc4eb474c1ab971a8. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF011200518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc56fb50d1397e9e1d2b1abb09409a8102624d0af63eab44d667d759bb1c5acac. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF011400271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ba97149b70da4590c6534905783a87f4df5b97e487f6c9a3d3aa8b9f35c4c82. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF011400364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb44f52ed3ca96b0f698ad78ce81d3619670c6da5a632abfddd7013440a9c3a6e. Chain 2 (Bitcoin): anchored in block 958351 (2026-07-17T02:38:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF011400365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95bb0b0d64cf6cb34d2fa0a4167eb182c0489a0e698a3607e64a1a42ebf01d98. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF011400366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c13d8e7a06f452b2e3cf0e0ab1e9d2c95656dd7257a7573c8f8a4e855fe4db0. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF011400367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6c74269b481c4d12be04e7b5cf25a6ba77c3f934892f0af08ef2113afee2a8c. Chain 2 (Bitcoin): anchored in block 958617 (2026-07-18T22:07:13Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF011400368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x337b20ffe21ff2b282404745ab2054704dc9f931aceb4a5476ce731e3aa650e0. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF011400369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c18f85d06b2d864707cb85a9f12932add8a65bd08689f52d9992028e1548423. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF011400371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed4d812e4e6c6b1e0c2c76efcb93669aac2124cfcd703d829561533bdc9af8a8. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF011400372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9c27fc39a1d16e953fc0ebbea264213ca8772a5ce0d204b90efca2576be904a. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSD11700128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd28af76ef2762e9af28eccfcfa754ed1941bf20228b23b6193d516c66d67bef1. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF011400414.