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 0xfd4cce1630d3ef1a9899df6d37dbf7aaee525a7ebabb2aec9efb51bf23af1ae8. 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/e4cb7f68-d23d-4537-a2fd-0e83239e3e1a.json and https://artists.proofprofile.net/proofs/artist/e4cb7f68-d23d-4537-a2fd-0e83239e3e1a.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 0x9f66cbbdbaef710a17de410a5a807a4946377eda898faa0b5f26c6d5c3497456. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T22:02:13Z), 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/DEUV11800128.
Balla..Balla!, Vol. 2 Italian Hit Connection
Balla..Balla! - Italian Hit Connection Single Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x848b0d438016e06e9bd49c28db415fddf8e2fb4dee4be09be8feac848ce09bbd. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/DEUV11800131.
Balla..Balla! - Italian Hit Connection Maxi Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaafa50017f27ee489d1981acd662b10bea82b48309c2da41095caf122d7e754. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/DEUV11800134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46dcc92db160cca3c8fac9dd2426b38ea92d98a7f094061700b971fca0cedad1. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:23:39Z), 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/DEG410501133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1eab2229f79282803b3244e8a5dac34218893176a69464624cd8f3ee7828ae2f. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/DEG410501097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e162215db74739cf19906e2f6af5bdcf6c26d085158bebdf17cdd84031c3699. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/DEG410501098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bbf7d59b7730dc3c12c449740083b5a3c103108c6f589184c9a504f9643a053. 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/DEG410501100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x986fe4e2e8496f777c7fb776c076df77a233b9dee5e8c66ac1e652e811c237f8. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/DEG410501102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29dcf3d7fdf756d75887c1a0de5f5f90d80ba2979300f583bf9958cd85a5c7d1. Chain 2 (Bitcoin): anchored in block 958828 (2026-07-20T07:54:57Z), 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/DEG410501103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae25b8f150edbb1aef803c71fcfde0d9379a5f549374251ca6d5d3b7bf39f88e. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T18:56:38Z), 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/DEG410501108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d6cf2626493b425a54ac97d0cfd58c4e26c81df4e449efebe4009ede2908698. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/DEG410501109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bfee6284d3f80b906f2a87348466ebf24d6cd65327d8c17d5afb1ba4df28e48. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T17:41:28Z), 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/DEG410501113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a5748c2d034b2dfa13204a883c4f8dd399452f16fede88979ebce2c8e5d8c4f. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/DEG410501119.
Balla....Balla (Italian Hit Connection Volume 1)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x451c6835e721252c7d522045362fedc5027be5cac399bfee75c83c2c9083bcf5. 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/DEG410063004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8163dbad6e4cd52d72e70a0ce7afd45867bcb50222dbdf2ab29472abdb2f882. 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/DEG410063009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x125ac0127dd6dbf781ea97a4dff3a939fe70224b02565d18649886c5e89930b0. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/DEG410813215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf835ec45486309af15b6c888eb2ed2a9b85c9f81d5f066c1d7fb184d9a9df0ea. Chain 2 (Bitcoin): anchored in block 958106 (2026-07-15T05:35:13Z), 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/DEG410813216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42c367c6a00e7bb910aec935e4ce0c1c15eee499f011e70d76501c280b7a95f5. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/DEG410813225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4863ae6d4108eb6c3813169bae7f3c0fe3eda81bae320a1de8ea41b95b489025. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/DEG410813230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41c7dac5a9d7eca5a8679b6dee8a75f2636fe54523b62a22bcabad9cc73f457c. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/DEG410813232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd03591320a03188e4c192b6510831a236552969881d338273e96b18db48cb103. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/DEW991500049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6639161138ad09927052e90567ba1997d6a20e0e530ceb18ae39764394f7e05. 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/DER751538501.
Je te donnerais tous - Piano, Piano French Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54b92af5cc1864ce56dafbfa3e34c4bcda6e1d79fa865ecf64da414b47185f10. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/DER751538503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdef1a0360723f2ca795a1a8e4bb66fc49350b0522458bd9c648fba88e22355dd. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/DER751538402.
Sinfonía de Amor - Symphony of Love Spanish Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x644afee22f6ee20b2d2624db55de639bb1f54f7605f38e307b81e0f88f29dd45. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T18:17:23Z), 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/DER751538407.
Balla..Balla! Vol.3 Italian Hit Connection
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x960dfc981f2c35776ea91449e3338351a85cbd0d777db9b8089eaa47378ef679. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/DEVS22001004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe44f01555fed8b6d00ce91a5bb248dc1240ab4f46b53708efb3872cfd68f7817. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/DEUV12500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x802608fdef34232473a50b68f7500539bc1942a3d774e1261e6537d8fa64cf0a. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/PLH752300241.