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 0x45e05eabd5eb79e06de56483ca94c4c07aa2735fdac48673b53aec04d2f60c42. 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/2637f822-d255-4d2c-a95f-e0b8fcce5e2b.json and https://artists.proofprofile.net/proofs/artist/2637f822-d255-4d2c-a95f-e0b8fcce5e2b.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 0xd97f5d3d74db74c6a3539106269c260e66fc70d9ea75dd4393c9de5251e0655c. 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/QZNW72351282.
Aria di Lei (un sogno o era solo un film)
Aria di Lei (Un sogno o era solo un film)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4a965e28f4d68eb6132870a221e954c1f572d35d274ea5329e2efef6ddd8957. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/QZYXP2315720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5eaa39a28fe2e89abf900511b9bf99f00c3de99b572de61479d454d676aa50f3. Chain 2 (Bitcoin): anchored in block 958087 (2026-07-15T02:56:49Z), 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/QZYXP2315721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e30b037578167ec74f23203f8df1496a1fa9a7660fb5ee6279f9ac6bfb0ca48. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:40:07Z), 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/QZYXP2315722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc99ddf440116441e269c9975bc4fc0e76810ee233ff93714781f8a5f3a3aeb7a. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/QZYXP2315723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3486cbc0db3cc3bc65cacf2fad8bf185212d67b0dd0a02b7c50d5137040b7ff5. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/QZYXP2315724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7074c30e625f69d08608f141fd679c82dcc777046b52d4e56be766796af3bc2c. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/QZYXP2315725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2170e0dfcf106df23fef8fb4b2ee31fb1145a2faeb776ce919381676dea241d5. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/QZNW72206957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb17fb6aff2ec371a2c0a622760b6f833c2257a25918c111ada2f3fe3a3759792. Chain 2 (Bitcoin): anchored in block 956482 (2026-07-03T10:33:57Z), 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/QZYXP2315726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50cd11e18df56862e376d02e4d7275b95b4b2a584d4b8ab6ce3d0ebfde0c522e. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T18:29:13Z), 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/QZYXP2315727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27556237a2453f283fbdc23e084fb06df51255250203cfe4c0f29aa0058cdcd2. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/QZNW72351326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x384e9b5561320f6a0e3bb97dfdbbfc1844f594be21de71ea0f1b1844c5965b38. 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/ESA122491667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce98b050cc1dfc486c9c53ceb6c317d2cfc41c0bd342e2fc4e6c6c3915bceae7. 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/ESA122491668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca11525b89a820ae2cbc633e419e9dadef6c90cf18f425233ebe45a32ea71354. 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/ESA122491669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x801d988332e5cc4f9745f31c2d8562adf4874a5892a04723b974abc260cad86e. 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/ESA122491670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6aafb9834b4690abab65283347e652d6eb00bea6f4e152de540e8565ad6cbc64. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/ESA122491671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fd017521d645abfe90b18339b574a88ba0e467280c938505ea1739a4d53a487. Chain 2 (Bitcoin): anchored in block 958531 (2026-07-18T09:39:18Z), 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/ESA122491672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc798a4f682b2f723a47b27b6ae96a4612e95856fad82fa19f0c587bdd190bdc. 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/ESA122491680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21c4619afa3999a78dd6e1356965906ba93a124cffc55e979e442f2c11de4af1. 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/ESA122491681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29b832e5d5680a514f43c51a6dedf4721eecddc2d96282a553c5aa9a56c9cced. 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/ESA122491682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fb47dd639de3805be5450319e35cba4ba24ca1d448f973674b17b8900ce274a. 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/ESA122491683.
Collaborazioni Musicali (Brani Riarrangiati)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf929499a3847f64529c50d1ba19bf09120d86db5bcefa4614b5b8a5a8ce22123. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/ESA122538590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfad727261eaf25a9c46fe89a07dd170f40b7ecda0984e1ca83c27da5b277edaf. 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/ESA122538593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3de5bd586c1ce1df27d9ef36cd5233efedb9ac242eb1e8b138aa6f6af6d28e37. 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/ESA122538596.