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 0x7202a812c98c5d32f58b32d79f5dbac30fbe4ab7c955bba69892ee646a678df2. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/37dbc657-fc3a-4fb5-9155-b312169368b6.json and https://artists.proofprofile.net/proofs/artist/37dbc657-fc3a-4fb5-9155-b312169368b6.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 0xfcc0c8343fc3ab36d7044d97f36c746834bf5913f7e0374d53616a5b77b45a44. 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/ARHXW2002807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a76df961444f665f54516e03de2a2d4786b687b0d5bc52af2d1433d4229feec. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/GXBDT2322940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2440c8af8c95df60665b32cdf4a0ad0cb30b527b2088708dec012a11b5d16105. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/GXBDT2383744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91cb8b996f37e2e00960e6d4dd4aae3a2d0721f3e01c91d695c597764c4c732e. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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/GXBDT2334061.
Por ser bonita / Solo / La miradita (Medley) [Live Session]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e93fe048f6cfdeffd8cf69a9caa645d389a363e7280ebd1d93d86df5aff0069. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/USL4R2405244.
Porque Yo / Boquita de Caramelo (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14a90cfd56a7654590bc669b953e124c87b53a18c47bd04aefccecfe872ece32. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T11:26:58Z), 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/USL4R2405245.
Veneno para Olvidar / La Ventanita (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d22280f5323f3844c43d4faa442b1a9013a2ab6f71e5f8f00235471c3ad3b87. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T01:56:02Z), 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/USL4R2405246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c490626663eb05ceaac6e7e32c5bd1c654f7db91a6403136898e2f6db11cb64. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T10:31:58Z), 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/USL4R2405247.
Inolvidable / Triste Novela / Otra Noche de Amor (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c127ca25d546610ada86f13f6f5265eeac8e5caa69e911f5eaa6f643f11b274. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/USL4R2405248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1be41055d8280295f1caf10ee80508a6ab5a6a2bb12ebe02c95014a56f76f7e4. 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/USY242450644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6420859fa7a944f1326d6c358d88b5927f3459a19e9519912dcabb0e24c8087b. 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/USY242450647.