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 0x4415f711b545355c5931837159c079b2a96f08f694f6f3470037b9042b1ea8f2. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2654db0c-81e0-4241-9cab-873e319b0bd4.json and https://artists.proofprofile.net/proofs/artist/2654db0c-81e0-4241-9cab-873e319b0bd4.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 0xfef2efb6555c9afd96e33e21c0efdab3eba948b6c95422c7d30a590ef2fb1c46. 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/GB6LY1600395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1181994e7a428603d45fd2e2a66a59d0b4f24795e2fc09f4bf531d4b82f0803a. 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/FRPHR2200190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e4994538416d23aad0358296fc7c1f59f8821416cdd9b6606458ca09b658646. 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/FRPHR2200350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5913bca74419727d38049b658bb5e6f78b670a83b384b26729d01e9f5d5db6d. 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/USA2P2016627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfef2efb6555c9afd96e33e21c0efdab3eba948b6c95422c7d30a590ef2fb1c46. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GB6LY1600395.
Tutto va bene quando facciamo l'amore (Remixes)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc091fe2c74afbac4cd1d7c81380e314ba941f341640c27d0ccd8f855077a1e89. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/FR13Z1900046.
Tutto va bene quando facciamo l'amore - Lifelike Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdaa3c281907892ab9617477af4822a1579423cba0f55d35a5ffddb6caec0c3a. 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/FR13Z1900088.
Tutto va bene quando facciamo l'amore - Pilard Extended Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fb84d6a2bc05918137fe8aff07d5cd2a2f78676e5f3aa0d060609f7891607c1. 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/FR13Z1900086.
Tutto va bene quando facciamo l'amore - Plaisir de France Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ba982b7f91a4c0532b2d3f31fdbf3a994bff0765a8c0d588a310a2f0b06d613. 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/FR13Z1900089.
Tutto va bene quando facciamo l'amore - Jabberwocky Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63573dfb82e5e7aae12218b49510818298329caebc1eb72f9a7ae3f24a09a73a. 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/FR13Z1900091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdf48bff22a15a5465b61e44284f64f36f99712aa85b18e63424f1ca1a44a92e. 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/FR13Z1900064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc091fe2c74afbac4cd1d7c81380e314ba941f341640c27d0ccd8f855077a1e89. 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/FR13Z1900046.