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 0xe5608bda65f730029a71e40c68a245407bf92231fb1cedc038bcda95ea037d06. Chain 2 (Bitcoin): anchored in block 953654 (2026-06-14T16:26:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/48252332-8720-4706-b3dc-22edc956117e.json and https://artists.proofprofile.net/proofs/artist/48252332-8720-4706-b3dc-22edc956117e.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 0x293597f5303222223700e4f2179b870b1133d45bef288d524facf774c995870c. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/BX4IU2351593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54567edd7d754ad78a2c8ec0feb1d02acd054abbf758dfe2a094a3d2a28a22c1. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/BX4IU2327417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x446cdf204cb8bf83cbfecf2d93724a0319f698537600dcf2026c8b94edbf27b6. 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/BX4IU2319239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0938024e9140e513daef7bc420b085931c63a36c75c11453c7b9afb987e12c1d. 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/BCIH82306720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba30262fde07bbbfb935d1f61d40a47836c0ce422218abfc24f6ff9ead72f0ab. 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/BCIH82208214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb18e21fcc067662d55b05bfa1af0c9b99c5d1a16788e8b7abd7c774f293f6c70. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/BCIH82208069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89f14849ef6fb9daec9854aa1524596b5a460beabd9e71b98d13b8ff032be104. 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/BC3PG2304713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ed89ac1d70b73da73c19aa36bc38d3b691eb711445fbd10d0eff8f96359b955. 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/BX4IU2327430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc36256a4ceafd71cebb59b7b673bd7d4ab8d49697442492acd2a7eefd675febb. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/BC3PG2304719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b4db39c090bff389953d58317fab723672e91c8a66ff1639271719ad5b253fe. 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/BCIH82207959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0222c2c4b071fe029934114d8e8586ce617b39d8115decdec7b93d9ab9c2fece. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/QZGLM2375205.
Super Automotivo - Vem Vanessa - Vai Leticia
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0048c1ef19db709549846c322d88dedc10dfdb9a12f312c191d04b5412596f20. 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/QZYFZ2522307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c17c42fc981bb7ea5f8f0922391baf11db5f05851fa0e51bf7b66126a1751d8. 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/BCUWS2500419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x770d3d09da9e99fabe3ac84b0bc1ff7072aaf6e4c56c797842b4d9fccf1d5538. 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/BCUWS2500430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44576ac193c2640fb4f75120faf90c89471e13fe8a564badbbbfe22665536188. 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/QZMZ92561974.