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 0x8e4508a19a7c81e132391ce68a3b0bcb6f66a2cb4d44c108d58fea311d78828b. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/20a98005-ec94-4734-b6b4-6ece283c7581.json and https://artists.proofprofile.net/proofs/artist/20a98005-ec94-4734-b6b4-6ece283c7581.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Karaoke Channel - Sing a Little Less Talk and a Lot More Action Like Toby Keith
The Karaoke Channel - Sing Tired of Waiting for You Like the Kinks
The Karaoke Channel - Sing Dancing in the Street Like David Bowie & Mick Jagger
The Karaoke Channel - Sing Heartbroken Like T2
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 0x82f700a852fa03b3312b2bcf24d6ee224e54536725cc7a168dcdbf69a58cff27. Chain 2 (Bitcoin): anchored in block 957775 (2026-07-13T00:04:23Z), 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/USK4W0934278.
Ask of You (Originally Performed by Raphael Saadiq) [Karaoke Version]
The Karaoke Channel - Sing Ask of You Like Raphael Saadiq
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce4c1a90e17d78022a2e765b02d049ffe9b8de9e50e3068fd5eaabe827315d1c. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/USK4W0702182.
The Sound of Silence (Originally Performed by Simon & Garfunkel) [Karaoke Version]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f91edb199ad993eebfda7acd702fc6e160e48060f3bf5ef7474d5c83713415f. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T10:05:49Z), 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/USK4W0725047.
The Karaoke Channel - Sing We're a Miracle Like Christina Aguilera
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb134a23a7292594c1fbd2e9f21900144d6595a13826e78e858750bc25911f13. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:53:45Z), 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/USK4W0709390.
The Breakup Song (They Don't Write 'em) [In the Style of "Greg Kihn Band"] {Karaoke Demonstration Version With Lead Vocal}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x264b0ede46cb34315269fcebd61cd4ead6b9880fd5fceb13bf1f92d7397db131. 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/USK4W0701814.
1234 (In the Style of Feist) [Karaoke Lead Vocal Version]
The Karaoke Channel - Sing Songs Used On Sesame Street
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1c6276391d67ca49a7f85c8f8b4da739c03e590f20f8335f79cd8928acf18e5. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/USK4W0833154.
The Karaoke Channel - Sing 2004 Rock and Roll Hall of Fame Inductee Songs
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd3b0c78de0e1d0222cb766eea997595d69535b5ade7da2dbd366448b86e27aa. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/USK4W0833130.
The Karaoke Channel - Sing Say, Say, Say Like Paul Mccartney & Michael Jackson
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed67dad4e8a02439b9c2e9d523e48b0ec4b10ec9575e811e69b2d7630653d210. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:36:54Z), 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/USK4W0001293.
Cuban Pete (Karaoke Demonstration with Lead Vocal) (In The Style Of Jim Carrey)
The Karaoke Channel - In the style of Jim Carrey - Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68ad80eb983c366f19ad8a24450139a4b0e2b9902ec677c185678019326a8d0c. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T08:46:35Z), 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/USK4W0712880.
Shout (Originally Performed by Otis Day & The Knights) [Karaoke Version]
The Karaoke Channel - Sing Shout Like Otis Day & The Knights
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f2d933a45f19336f69392f39bcc9017ae8be64386afba2486d5004503d1097e. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/USK4W0704885.
The Karaoke Channel - Sing Closer Like Susan Ashton
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c60473d8b35fcd6943822c82c49e3ddd31a8967a2c86ab68588cf83006b619b. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/USK4W0701232.
Every Breath You Take (In the Style of the Police) [Karaoke Version]
The Karaoke Channel - Male Alternative, Vol. 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x270dc2bcf8fa4c1dbf40ce6e7e3c242458c0795d0a28c932e81ffa82b8cec502. 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/USA560511977.
Heroes - Demonstration Version - Includes Lead Singer
Karaoke - In The Style Of The Wallflowers - Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5c54e5e3fa3e23ca7a2b38aa5de5f07dc8a081973209e4180680ab7e3c4c353. 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/USK4W0704784.
Another Brick in the Wall (Part II) [In the Style of Pink Floyd] [Karaoke Version]
The Karaoke Channel - Classic Rock, Vol. 32
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaced89f2748d8070ae331970777b86976843c59f5682c135f3f2f2b9e7831cb. Chain 2 (Bitcoin): anchored in block 958622 (2026-07-18T22:58:55Z), 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/US77R0404718.
Stand by Me (In the Style of Ben E. King) [Karaoke Version]
The Karaoke Channel - Male Oldies, Vol. 5
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b1f4e456a271ba7c0ac5980946c4c4439855184ed647c91a49e3a105bb44153. 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/USA560512361.
Family Matters (Karaoke Demonstration With Lead Vocal) (In The Style Of Various)
The Karaoke Channel - TV Show Theme Songs
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd55abe9fff72cb30b0637570224fc4110c45fa772ed8643743ba239bdd603cff. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/USK4W0703631.