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 0x48520476a2fc3cff1ae6916b1d53462f4ace94235640d455c3437bdcb5844bcc. 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/276d3db8-cc0f-4f52-a774-c260488eea21.json and https://artists.proofprofile.net/proofs/artist/276d3db8-cc0f-4f52-a774-c260488eea21.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 0x3baa35f5cf1e5be0d47d1429e3d38f7c90be3cc7d982e4ddd6688ccaea1cf580. Chain 2 (Bitcoin): anchored in block 958069 (2026-07-14T21:37:55Z), 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/QM4TX2100514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x815f452d4ab318e6f455f6a57a54bab4ade2db9c50049bcb6e2cb9fdb67ddc02. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/KRA382204616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5974b5d26fad6ed41513ce3d0aa1e0c32b869f2129b13d2a10404dd00f33f3c0. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/KRA382204622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e874d77a3964df0ba9f247acbb42645a7845c25b0bb36434a6153048cd72342. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/KRA382208231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x893eeb7c302b3c70b9ea96c66ebed635af638bdfc7e64bf5e43e7d8a3eac86bb. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/KRA382321630.
Balaclava (Feat. Street Baby, ZENE THE ZILLA, Skinny Brown, Khakii, cwar, ksmartboi, Layone, KAMBO, Don Mills) - REMIX
Balaclava (Feat. Street Baby, ZENE THE ZILLA, Skinny Brown, Khakii, cwar, ksmartboi, Layone, KAMBO, Don Mills) [REMIX]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe02c024137411ca17c2f9150e8914dad9d23c37582db6409991d78464aa4bb59. 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/ZZA0P2309671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1223912747b49d89ca346d7c8a85e91769dd2a663b9042d0cfb4771e7273a5ae. 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/KRMIM2127000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09f3769865e86e3621b81b80ebf304def1904d0a1839ae0de78ad49794d98dc5. 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/KRA382301495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x246822460deee269bdc5401790c33dc020ff27be01d59918adf12dbdcaef6c4c. 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/KRA382302289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee4aeb45d36534c4d87f40328f43553095b154754d909e867d59367c9dfbe115. 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/KRA382302290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x963ab07b6de55aee9bbbd88da0917636dabaf39d612cec536fb753e655bc13c3. 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/KRA382302292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7277a7479a17d8837cffac97656dddc55e32277ace21cf338cbafc532b99cdd. 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/KRA382302294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30ec9b452358ab89d5b20f5d8989f08677863b055c81c3f006c4c85c8c361abc. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/KRA382302295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97869750bbf8314ab1746dbc9fd2994f5058483d58f7e9b55e7f8cb5533ef07a. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/KRA382302297.