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 0xb53e6f11efca7578566bca9313421f0f893ae182fac54929c65ee2585a391700. Chain 2 (Bitcoin): anchored in block 954618 (2026-06-20T23:05:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c8bfafc7-f3ee-45fe-a779-c706f5b8d905.json and https://artists.proofprofile.net/proofs/artist/c8bfafc7-f3ee-45fe-a779-c706f5b8d905.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 0x9d2ec0a655d425176a2e599f7f3f3aa482b6390574fb6473f80b9d89e6572f81. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/USBC19803481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5464eafce8aa3a8fc789b19b67fe74129c054184e31e45df8777bf491f511f44. 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/USBC19803482.
Magnificat - A Musical Celebration of the Great Jubilee of the Year 2000
Collana Musica Sacra classica: Tu sei bellezza
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55d1101ca2a6dfec0bff318f9e23c9abd501e72308a4ca1140e053fa01ad228b. 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/ITH270300011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2abe04b9ef1ab29030a73ff3bfbfea03e7b5d7f64b2026fcecd7f3eb1a3f7da0. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ITH270300013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2beed904a7f7c8aa1d45a7f150a3ca025635be5a8f35ddd10bff333bcba7943c. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ITH270300014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50ab34f7d27cb7c610d461a32295d97dbf963dc17c50121d843fa646ece5bdd8. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ITH270300018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc416f7c8736eae80a859e65acfbfd5b67480b073fdf16100111abfd0a520ff37. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/ITH270300019.
Paradiso, Paradiso (Live) (La vita in musica di San Filippo Neri)
Introduzione a "Paradiso, Paradiso" (Presentazione in voce di Mons. Marco Frisina) - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63cab19b5ac81380e0fcdb28e1a3691fd8a2c21769f32ba25cbcfc204d88465d. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/ITJ361302221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6ff8ac63067dcbbfc66f6165b76e167569c7a2c62871f66427a0857f3ab0e44. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/ITJ361302222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd383537c1bba9214818b561e1dd93fc07e71aba6800c36081142279d2124c309. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/ITJ361302223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc46256e82e4f72d3e77dafb53de9062e1a81148d9464ea1bacef2da3a33d466d. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/ITJ361302224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38bcc0939c66a1ce930f9897fa97821148b312c209370796b08597dee5cc350e. Chain 2 (Bitcoin): anchored in block 960503 (2026-08-01T03:41:24Z), 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/ITJ361302238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3a866b5c989876339d8d143883dc1de1f67183f5691cad1b7bf53d363f8a38c. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/ITJ361302240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e6ad2534ecc4a3e2024d6800cf51cad4a19e2fc9b3a307da87a10902726cab7. 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/ITJ361302232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ae561acb3c5347521cbc6e2a6ad08660cc819304c5966b62ece64bf9e3c9a6d. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/ITJ361302233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7da6c9001d84c91c272e07942099cb5fd5b0054410257475165bf9ee87cb1c5. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/ITJ361302248.
Collana musica sacra classica: Jesus Is My Life (Canti della XV giornata mondiale della gioventù)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaea5c8d8e080f33f9b307d5cb143ddc7596045b85d3273895edd7790be352763. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/ITH270000046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x269297d016951cc433b9edf16935409446b372170589919d6c4b60d68dbde155. 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/ITH270000051.
Collana musica sacra classica: Non di solo pane
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6b316e52202f9ced405b022820f6782ef634f5641d106cc33886ecb29eb364f. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/ITH279800053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x809fb06e3cb34d4cedc897888dc925fea03d41fd41186bb77468146d2a9b275f. Chain 2 (Bitcoin): anchored in block 960513 (2026-08-01T04:52:22Z), 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/FR6V80529988.
Collana musica sacra classica: chi ci separerà dall'amore di Cristo? (Canti per la liturgia e la catechesi)
Tristano e Isotta (Colonna sonora originale della serie TV)
Music for your Travel in Italy: Remeber Venice