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 0xc788b15b7c9be319b0c5f1753ff2d5ba6ef5f6452ea6562c122a8560ea0d2587. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ba2cf8b8-4b09-4cc7-b8b1-af79229850f5.json and https://artists.proofprofile.net/proofs/artist/ba2cf8b8-4b09-4cc7-b8b1-af79229850f5.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 0x7bdbb583074c21df23291244a1009bdabb1ec3fbdc2231cab129b8ffd255fece. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/FR26V2084661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedca0d2f7d27b9847eeb06566e28fe3f50322e676855aebfa03cc35f05abdb5b. 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/FR26V2084665.
Neo Composers Piano& (Composers from Educational Music Academy)
Neo Composer Piano&, Vol. 2 (Composers from Educational Music Academy)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc491e1105ef8a9e0b9d1b4d5d6ac1245543e4b3766ace54fb7f2b48f331a7d10. 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/FR10S1989925.
Ennio Doris - C'è Anche Domani (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffa3e6ce015bb5070b7b8a9d98fbb5c01b1d5bbad1ac47d4a5b503bbb30108df. 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/CH6542421793.
LA LUNGA NOTTE (Colonna Sonora Originale della Serie Tv)
LA LUCE NELLA MASSERIA (Colonna Sonora Originale del Film TV)
Stessi Battiti (Colonna Sonora Originale del Film)
La sposa (Colonna Sonora Originale della Serie Tv)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bc92aa9fd19a547219095a3ba48f02ade7c8f526aa5432dd995e2a1933294ae. 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/ITE322128973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x781ffb427c04e9ea012867b25c3e05e5893233481343644abbecd6fc172923ae. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/ITE322128974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61ce8e2518eb7c09be934af58dd924e625d1e684d9ce8cb80c520fe9244c20e2. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/ITE322128976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb672881b0aa23fa9718755f3edc90f6095c27c0f636c298566ed6f545958f52b. 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/ITE322128980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60b0de1c7c6d76ef8987d87a164c0938f154b40726c9ebdd1a5e3efda3321492. 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/ITE322128982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13115593474d4301dbf3982ebe3456b78eb1dfeff616112efec0daa61f4a06b3. 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/ITE322128984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9680ef6877ea0f7281b5af180896791190bd25002d8e19f3783f6cf660a59d2b. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/ITE322128992.
Chiara lubich (Colonna sonora originale del film TV)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f7c406fb2ba4f5523eceb7e50b7c1903c053d1af95ecbcf919021b85d9785a0. 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/ITE322025403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d7a9b14cbd308f1705962a3d09f28383c99015e9fcf3603a7fc53ad15756e80. 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/ITE322025405.
Ognuno è perfetto (Colonna sonora originale dalla serie TV)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cdfd5cdef1bf1a1f5b6cbc06e44c830cd231d14b941dcc3015ef354466e772e. 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/FR2X41864965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95db692bca020a4f994d041142eb011347934338e91925b77affd3216ad445c8. Chain 2 (Bitcoin): anchored in block 960381 (2026-07-31T09:50:11Z), 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/FR2X41864966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c1d35ce5586118b773ec5979cf0c25c9d3f8c4612813802883c4c89b7cb90d2. 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/FR2X41864975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb590eb8222b97fedc2e5671ae8160883f1a964b057034746812e97d5196c5956. 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/FR26V1635928.
E poi arriva Menny [Colonna sonora originale del cortometraggio]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadddbc1cc40ffaabacc7e8855c5a3200e406fcd6906ebd4590163fb41f0ea778. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/ITK252130076.
Guardami così (Colonna sonora originale del cortometraggio)