Captain & Tennille were an American recording duo whose primary success occurred in the 1970s. The husband-and-wife team were "Captain" Daryl Dragon (1942–2019) and Toni Tennille (born 1940). They hav
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 0xf1ba320bfe74b5a0e344b72b9fab6198056efa5731b261df6c279733ccc019e9. 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/ac27e311-9309-4385-9832-733e949565d5.json and https://artists.proofprofile.net/proofs/artist/ac27e311-9309-4385-9832-733e949565d5.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 0xa59a0726fefde51c4f831d71fe0d600f425fec2075c21e234d38da1df719c946. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USAM17500299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda7ee37f5c15b643a13308a297aa366f5e84cec4e49215cc91b6fd88bb757f3b. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USAM10110026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c897ba15f2d55d6bf9e53a7b341d3fcc84467309b11eed18e8ab40c6fce4669. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USAM10110025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc93c2ac13598978fb0add33cdc4527f022b9947925f0320d8b4788eeb1809876. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USUM70504660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab1da9a44a4c4eaf564a42f781499e43296b78d66ddcdebe2b828265b20812b1. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/USUM70504661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab3a05b8012543f4bbe28c9c1c5b20db25474fd02dbcca5a6ad3b8ff2c883f67. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USUM70504662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9e14624f16782fbb5fe78611e51bfe0d794861b61e0c12080485cc618d4a892. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USUM70504663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x914421da36999fda2e67715d8db25ace6d9657b4ec8b82492477e47632b9808d. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USUM70504664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62a71a29846c3ecdb7cd26849a28753199fe612eeca4089e5fb54f95dab8b518. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/USUM70504665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e214e2c57fdb9240d150c1cbff6fa9daa130ab87235f2c2874493096e8bad06. 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/USAM10110024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3db7ba0cc53f1f1a52a63412da3c5005e6989cb05471fede0a22bf13dd54be88. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/USPR37900077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3db7ba0cc53f1f1a52a63412da3c5005e6989cb05471fede0a22bf13dd54be88. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USPR37900077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa59a0726fefde51c4f831d71fe0d600f425fec2075c21e234d38da1df719c946. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USAM17500299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3db7ba0cc53f1f1a52a63412da3c5005e6989cb05471fede0a22bf13dd54be88. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USPR37900077.
ドライブが楽しくなる洋楽ヒッツ！80年代 POP
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3db7ba0cc53f1f1a52a63412da3c5005e6989cb05471fede0a22bf13dd54be88. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USPR37900077.