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 0x2b0b5d48627158587a019b2d5fd170d1fbf2f2e0fb08bd4f8f55900579468683. 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/2b475cdd-93d9-49e5-bcb6-75a3eb19a4dd.json and https://artists.proofprofile.net/proofs/artist/2b475cdd-93d9-49e5-bcb6-75a3eb19a4dd.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 0xb467a669ad8e9eef90914f2e3478c3395143ca8b2696522011146ae56cadf290. 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/TWU712404433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85fb6f10ba70d30b81fd9b5843a32fa70ad7e49552b53cef8200d3e0c2df58c8. 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/TWU712301008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2da8c74e50ddfe9f548830a11480c3b4babb41074300c78e4a914543e63f4200. 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/TWU712301010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf5b1c6212716d41925ce8104a29d379fc8c6329a9a07f9bb28d6139440ed1fa. 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/TWU712301078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e938d1dffc1c97b77b068b4dd845f73850cbc139d11cd8f817c59507c7a2a85. 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/TWU712301069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01e466bcc28f5331d48368141eb1c8bec2c4b5f274c49ab9717e1f4e4820da9b. 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/TWU712301066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb09d200c973157e77e8f801fb4bd35102d999b4a91a5d499cead1184040c0d14. 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/TWU712401624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4f2f1ce0107b363f4d3f25f0657a9c8ac52776b4b9825113988e752ca91bed6. 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/TWU712305620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3005ce8d611c77611a99ca8fc07ea0b9479372c00b1479ed1519a7aac587819f. 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/TWU712305623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ecd3d182d94b029f2c3d67b282c868c295b7b30853daf4968677272cc29002f. 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/TWU712305617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc327c5bb1f9050d1af60ba17aff609a580ff361592d452c2a34514297d9ccd1. 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/TWU712301493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68953812bb40c12b03f1eac0e0c8e3cafe8b0cf122abf891a0512f72baf6cb3c. 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/TWU712301497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x389e140593dbb72af7c269f1ddedf5f4e768f8013b3d07d68c9b1f6baf7d9c7a. 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/TWU712301489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f95747f1984bc74b06f9489df4c83e99bb052806ed5f863edea0e700bcb397f. 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/TWU712202960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c011704edffab1f7f8a00a4056b956017e8aae3d83193b1862d9518ce98cc41. 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/TWU712202954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd63388f10ee70fb8094d72674be14a32866a9a65b4b374251b2e6293a3ac4e18. 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/TWU712202958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98827707a29e8c41724c68a467adaae81a5889ed6026a978882a296ae6080649. 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/TWU712401297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05ec4f333a3b55d62adf094e1dbf3c65fe8ba3bff39dbbcb02df14eca6b51f11. 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/TWU712400992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f05d0a05896087589bf2ac425b27b0e3da9968c2a70b9caef29a2766525dc00. 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/TWU712102479.
Rock the Night Away (Instrumental Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04e0283d1c29bb028a99b7641bb16509cbc50fe520c470ff65087e0d2ae65b07. 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/TWU712102480.