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 0x8753adb3442fe65850b1bea5e0b561d2f12e28aa8bb340cf23b816fe1ca35f10. 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/7d66eb16-bdee-440d-9a3f-607712041aa3.json and https://artists.proofprofile.net/proofs/artist/7d66eb16-bdee-440d-9a3f-607712041aa3.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 0x878851b6f0f20f54c8cc8923ce10e59d29525104990cd7157f5aeb3daa808043. 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/USC4R2108054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa272a14ce78bdddd37a40399f2e3aa1775dc97d20450090a0e500f8414c7ae61. 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/USC4R1806600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4690ec58998af9ed13343ccc01684e358df9fb9f4f75530957473b020e7fa30b. 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/USAN20900038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4843e7535750b2ddbb1db5aa6eb814feb05dd2f893547d697dfb5f445e60b3bf. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USUM70502883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3dcf86900c547063c1dd50125a4ba3230c688ed269a9d3106ff6ac43b43230d. 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/GBCBR0400962.
Higher Education (feat. Kid Rock, Lee Brice, Billy Gibbons and Tim Montana)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x605045fd15f702161e498a7609d674e14ee8895fe1061115a86ecd54a00370e0. 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/USWB12102370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c95c944567dd71537e4f6eeab5595d8f53520cec722380a2e2c7e0cc44a92b1. 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/DEH841700519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9af7bf1bbc1d6ad2f4cfb6651cbc2664607e9b1455ab860842ef8ccb6bf35c14. 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/USRY20601030.
We Wish You A Metal Xmas And A Headbanging New Year
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c1a10737b5060418da92bd25c4e5c7535a2e9ed4a872b810b634cdb2bf818fe. 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/GBCBR0800203.
Strange Angels: In Flight with Elmore James
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb14a24a34eead6320ce017f895dbd6afc541089ed1354134b57150884444b7c5. 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/USZAT1773160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54af0ea422fe9cede473127247eb4c4ad525484d5b37310c27c6f4a9bfc5f923. 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/NLB931100273.
Rough Boy (feat. Billy Gibbons) - Live at the Hollywood Bowl
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc13b1075d35dc76a48bc550115652898647f9e93cfcecfbf89209a461f3e9ded. 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/GBCBR1700135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a848f35b6a4a8670a08206fa7c4d8d0a84397cc5a0c7dc6637f6b8050cae86f. 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/RUA821000010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9dc71729a84e40a10bd3310c7f38b0bbf5ebefc98a433c95c13c5a9eab005f9. 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/FR9IN1900020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9dc71729a84e40a10bd3310c7f38b0bbf5ebefc98a433c95c13c5a9eab005f9. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/FR9IN1900020.
Soothe My Soul - Billy F Gibbons and Joe Hardy Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c05d17136830ad041e75a47c753a0afb5561c608754c0132b73dbb7001b7973. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/USQX91300947.
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 0x13b80a19bbba786c08bdd98019725c9de3c6286ed8b30c449fd383c87c4c8eb4. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), 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/USME31400242.
Sweetwater (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44313c8bd8fc47515197e4dc9987788e09f47f0713eefa8c47f657a3b9b91283. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/QZR8K2324009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x960a0bc0fa88c8c1799fd28400d25b2eb8ebdd97a58c28cecd5d736e60175654. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/RUA821000001.