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 0x1c6a274a4d0d414e072466fd31bf3b8cc7b5752e9f8d4f58b5205d351f5cf8e6. 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/c6e01ea7-9736-43ad-afe1-e256bfba5383.json and https://artists.proofprofile.net/proofs/artist/c6e01ea7-9736-43ad-afe1-e256bfba5383.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 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 0x24162cf8c4ae13622814aefae43dabdd6ad041de76fa4d50cff0129f5080f22b. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/ZAQJX2100011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7912153b63a1e1ad4581e066107deaa3182d8ef3f84253348b52c5b1fcf6ea7c. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/ZAQJX2100010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63b9136811000da830357af3d75feb5d038228397a3eaf06703e503af5d5cc42. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/ZAC012301444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcf9fef91c179e721242bcf3c0c4040922f8b126ed303a979b147adcbfeea847. 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/ZAOSD2300012.
1 000 000 Amapiano Seconds (Kings Of The Surface)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbe7a805f32e17f1ba7e24660c7c282ace17cceb66f954dba4eb37db74cc82e6. 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/ZAE3A2100061.
Nomalanga (feat. Jessica LM, Teejay & ThackzinDJ)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabc44e6198647cce91688171800e81fc187890014375c68e82ae0fc98ee6ea80. 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/ZAA012200256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce673f47e51e49fd5480875ec1a9d3a23af9b2d4454fe8697835e38ded9f26a1. 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/ZAE3A2100056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf46299ee8290093cc36228b7ed698c79a2ffdde978b658e7565b85b2e34e55b6. Chain 2 (Bitcoin): anchored in block 960167 (2026-07-29T23:42:34Z), 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/ZBO732300132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dc2ea5c2f38bdbdfc5ee0926486ddf7c44f45a3d5c830b5d95193dd1fc8c730. 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/ZAVC12100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a87baf548745230677a8d126c9a4622dcf2dbfe86dfb86842992f42067a4cb1. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/ZAVC12100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2bdfb86c7d0fdfdc9732c9bbdf2deca5532e7d9d4a40d69b576fcc403984673. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/ZAVC12100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2bdfb86c7d0fdfdc9732c9bbdf2deca5532e7d9d4a40d69b576fcc403984673. Chain 2 (Bitcoin): anchored in block 960177 (2026-07-30T00:21:01Z), 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/ZAVC12100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dc2ea5c2f38bdbdfc5ee0926486ddf7c44f45a3d5c830b5d95193dd1fc8c730. 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/ZAVC12100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9f4df962d82418e60f790ba18ae005c1a593d0c3203abd815a93f14088ccb9a. 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/ZAE5L2100013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9f4df962d82418e60f790ba18ae005c1a593d0c3203abd815a93f14088ccb9a. 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/ZAE5L2100013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d39f4bdfed8958c66772d0acf276a6c44f0bfe6873b4ae28b99f97eefe93f26. 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/ZB88P2300287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba9a20fa2d3c8bf2ee2990bb804946e5e08106998dbe2e7929922ffb53b7cc77. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/ZA8YF2300007.
Shaka iLembe Soundtrack Album, Vol. 3 (Music Inspired by the Original TV Series)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedbf2d17d3e00e7def3453839bf59e2e9bca7f240898df4cd05e8d7cc969b33c. 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/ZBO732300411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x428d33ac194d149614e4949b033fe9c6ebafcfac890bcbc3320d4986dce79e2b. Chain 2 (Bitcoin): anchored in block 960113 (2026-07-29T13:38:16Z), 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/ZBO732300421.