Dr. Hook (known as Dr. Hook & the Medicine Show until 1975) was an American rock band formed in Union City, New Jersey. The band had commercial success in the 1970s with hit singles "Sylvia's Mother"
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e8ff5f9458cdae5fa519d207b6cbadd2acbabdb130844e814398485d8440295. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d1b8df64-69ab-4fa8-8077-d65be7391bb2.json and https://artists.proofprofile.net/proofs/artist/d1b8df64-69ab-4fa8-8077-d65be7391bb2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
When You're In Love With A Beautiful Woman
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc17957086bffa8579a501f771e1cba05e10ff1e3972b318d5cd228eecf5ef833. 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/USCA28700091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc17957086bffa8579a501f771e1cba05e10ff1e3972b318d5cd228eecf5ef833. 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/USCA28700091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x200e5090856c9d50b88f671cdafab7c2c03b5ce1911c49fa2b213c72ee6a517a. 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/USCA28700089.
When You're In Love With A Beautiful Woman - Remastered 1996
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4558c07ed8a31f313539a483aac11d646ca301a651d29121aec95a5f7f71eb5b. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T16:43:41Z), 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/USCA29601972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc17957086bffa8579a501f771e1cba05e10ff1e3972b318d5cd228eecf5ef833. 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/USCA28700091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x308c4f172f35e9e307ab0f6b72957cddb6a8e2e8c50c61ce1e96722a92be35ec. 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/USCA20200127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5edfe5f199f97ed0483749b7512370fd6af542d6f3436f17396656d34033d368. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/DKAZA1401347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae0435c9325021545633e47683489da51e9aba6b397c9379cd3205bc0b5630c8. 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/DKAZA1401357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5edfe5f199f97ed0483749b7512370fd6af542d6f3436f17396656d34033d368. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/DKAZA1401347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f35f5ab5b2765b6a7068dc1b07b95c8fe8e1328066aa972617316db8d5d85e0. 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/USSM10105635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30a8ce3ab5843c59020aa90dcdb34ee994f648c7ac8a5389b231143b1bc8d258. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/USSM19928225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x200e5090856c9d50b88f671cdafab7c2c03b5ce1911c49fa2b213c72ee6a517a. 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/USCA28700089.