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 0x768fe114e5ebc055d2efc8fd4a6b1200893eaa6128a05d53c3b2bd6676b3994f. 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/4953ca91-cf87-4cd1-ae43-218f588646a0.json and https://artists.proofprofile.net/proofs/artist/4953ca91-cf87-4cd1-ae43-218f588646a0.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 0x9e17bc8925fb50057504b9b299b3dfdd1e1cccf003c6be19f52170663899d82f. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/FRP051754501.
Ambition Of The Shallows (ft. Napoleon Da Legend & Paloma Pradal)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67f91b7533529610f4a9b8f2fc58a36d527c0818ecc44d51f1072a4844c0aea7. 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/FR5R00906731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c8117c7c57a101e9640086be2c58c9b44d959d0f35ac45e2d7a2d0bc20f0907. 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/CHA011500004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x610ddafd446474ea96c592a7042a94bfe37b710f0708a13e57e9dfa21b6c24f1. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/FR5R00908377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa648767012385804d12ccf2b5025aac2ae54eccab829ddbdf9033bac408f3f94. 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/FR8GV2222370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde32a105317b73c580696a8900755e16a4c95095cd396a6f4a577f84215538d9. 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/FRPHC2300006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9466b9c4efa4664283fcdea30254074dcb57fff7aedc1b242146fcce5529fe66. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/FR9W11519286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6f84ba80c111e4f0cf036dd6f4e166b446efbe4518c3ba07d046f8168999d6f. 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/FR8GV2420890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ba69fde6048e655e9318cd4456f51d781c4e4aef1506dde35349a23e731fe7e. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/FR2X41622645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dfae80ecc09f5daba36461d5e0afc0fe2129235cf4103a83aee7ea644df8ba3. 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/FR2X41622655.
Catalina (feat. Paloma Pradal) - Merdan D & Fabrie & Paolo Remix
Catalina (feat. Paloma Pradal) [Merdan D & Fabrie & Paolo Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaae864727f821e07a7bb15a711983cc2f2748d5fcbc133b6713da0d6b043f1ec. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USLZJ1791491.
Emilia Pérez (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cdcc379e1fe659c92ffd0947c3dda38625c3067bfad3b5e645135fe30753d6c. 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/FR9U72400043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8606b18bdf90a216cb11d20c4701a1670c1a4da778b2ac18df151022096609cf. 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/FXQ132100045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2cebf3b80329c0c3810fca8162e5fa7639757b3ee74fd43bc2511042d36d937. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/FR92U1400710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9b1d4161acf75d0434aa6625abe3eb6ff22379262ff9c987d18f6366400fdba. 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/FRP7S1900070.