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 0x2cabfbc8f1b3aa1e8370c7120afb71bf05a408007b33615ed5fd1e4800a4dced. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/64849f85-1dc9-45c9-a409-7db0503df035.json and https://artists.proofprofile.net/proofs/artist/64849f85-1dc9-45c9-a409-7db0503df035.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 0x633dfbdf5d0679b5fcdc327b5ea7727fbfa9dc918c3155038e3b8da102917696. Chain 2 (Bitcoin): anchored in block 958401 (2026-07-17T11:10:25Z), 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/PLS081600015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96fe29742151735a3a3d2e52df71e48d310c535475d05bb80915e2b8f0dbdb31. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/PLS081600016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24f2cb51e7e8810428106bb27008483b80f6492abf04a23f631fb02335373a46. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/PLS081600025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb7b99d2f31e4b6a4cb003e7487c7efd4ff87f945a88c61d8f335af1aea4ac32. 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/PLS081600028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75917161d101f8c55568cefd1933d9e638ecf40a410bb42eb2b6a35a63c99f11. Chain 2 (Bitcoin): anchored in block 958825 (2026-07-20T07:39:48Z), 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/PLS081600029.
The Best of Alexandro III Romantica with Antara
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba13eaa2ec63983bf67c54dc44c1282f44df0e8dfda0943f3f395fcd5cc34315. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/PLS081600032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaccaffe7c7cf88aa7cb52dfdef0201fd6accee3c90414eb5bf48d7a4f53f0fe. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/PLS081600033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5514f8815fa6ed6978f4b3172a649ea5100a386cb635e7fec0cab94653928d8. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/PLS081600042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc67b5a7320571651ccec92c4925ef4dfc5d6f3dc2b3aeafbe8e1f40e04ff6e9c. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/GBLFP1822220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x398e3a02c869fc7fb47b24b7f42950aedd17333e858d0fef2f00096ba2288cbd. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/FR59R2482038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28d610f7fe9c993484965d2ad3a1d49675f93db4d08f3af99dbb615b39ce650d. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T06:58:20Z), 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/QZTV32568688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dba682b4b4e8b6f345420c33a299d6a315c9c05399ce6c83e32c39da8a0e9df. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/QZTV32568758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1711e0948feace56a0070318e029acedca923fc5e8e655adbacfcf48bc77bf4e. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZTV32568862.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a9a1e3a689c4ecf18b5c1e8224c21fb6f9faf04425b8f4c56344194a2cb3726. 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/QZTV32568905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5feb47f11b576b13b5b5ddf7af1886f7588e2c11cb377242c7ad3dafdc61a18. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/QZTV32568922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77366efc629edf7267480142a0252e33362c5b4fc4fe7a11e911b0fb3b47b75e. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QZTV32537748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x770072cdeccce6a3fa22f2796b063687508c6b49d5c7c6f5d3794aa1eb662826. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZTV32538506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7973173fd8690a8e351d6dec902cf8b1d29d15ea914a8da250b5d52d080594b. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZTV32541285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b9b60a91b7dd96da6993105492cb9eed03bc7b9d893ff145cedb532539bb860. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/QZTV32568108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74ad78ec6958a3d77a2274fc9217a5024d4464fa9754937a66ddb018dd27c757. Chain 2 (Bitcoin): anchored in block 957780 (2026-07-13T00:36:44Z), 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/QZTV32568170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06ef2f8e8b0e77a03d40c401df446b3e597abcdeb3491cbc25078fd7740063d2. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/QZTV32568174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bd90ab890127bb9aff5be3133ec3d0cbc70c4ce1454e9472e902ae7f0fc7f4e. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZWV32595768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb162c397c8a1eab87518f75f54b86e1b316663b431addc55f670dde82fce09b. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:20:05Z), 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/QZWV32595769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x564dceb1386066c157acd5a150fea8ed80daf74a8471c1a5a0844c0b3e14d3d5. Chain 2 (Bitcoin): anchored in block 958878 (2026-07-20T15:05:30Z), 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/QZWV32595770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x914752be10c6d7e655794a7682b138441246f06c2f0b37d91b645ccba85a2bed. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T12:07:44Z), 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/QZWV32595773.