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 0x9d6f6e888221ffa8e828d0e7a49e4955d00a1fd5d31aad7c1970ac39287e470a. Chain 2 (Bitcoin): anchored in block 953717 (2026-06-15T01:05:33Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/87623d57-e84f-40e0-9ea8-bb68413c4f81.json and https://artists.proofprofile.net/proofs/artist/87623d57-e84f-40e0-9ea8-bb68413c4f81.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 0x4e75f40d119de274188466a333cdb98ce7bd0f34dca9451624d9327c905c48e8. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/QZVEM2557245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadfaf16e52bf4eb417962fbf11ac611c2d08065109748192379e7a92edcc960b. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/QZVEM2557246.
God Blessed (Buzz Vol 1) - Dj Trashbeats
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1f9d58f609d74562260362cc6e89db9d2b653cafb70d679e5d485e756e7c88e. Chain 2 (Bitcoin): anchored in block 958380 (2026-07-17T07:07:02Z), 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/QZVEM2557247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x355faf57e370bb1fb3f756fee4bbebbeb6631ee38973663d92394739aef33fdd. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T05:45:43Z), 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/QZVEM2557248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83a8a4089eac8209079dbff6f16e0d9e3f4cdf77926957f2c472c77cd3d84eeb. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/QZVEM2557249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf90885018e10175099e326b2d18f9860736e07a47d0bd546b21f84a9232eb915. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZVEM2557250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6947f54b76bf510ed181aa13a28c0865ea70f700ec9bd6f7e2d805abbb406ab6. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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/QZVEM2557251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20d2c8079e2f88c1f78bb66b424426c23304cd90a92834c08d8c4587fc00a178. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T01:45:03Z), 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/QZVEM2557252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa02607f5b8b233358505b7080b8f5a976194f8a384766bad528966b21f0a4328. Chain 2 (Bitcoin): anchored in block 958971 (2026-07-21T05:04:56Z), 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/QZVEM2557253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x882d63f63fbb0d431cebab994fe09f47767cd78cd1e15565769d397a62ad54e2. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZVEM2557254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67aeb131c479881286c53c5922288f8002d2b622176ce84aa46c827177099d54. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZVEM2557255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71cace229dcd76952aa4f2ff21fb7399740dba31a3be32ce324d51eb524c190e. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:04:48Z), 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/QZVEM2557256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cf676fafb801fe0732c51fc5fb11a5356314ce87e6e53281d26778dba88a6d8. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/QZVEM2557257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7e15095045a164c0b8f85bd3f851bdf0f2b5a7bec99c7b27c14f7c6020610b7. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:35:04Z), 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/QZVEM2557258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a0c83b560402fd89405f0932952ba87c57fd89cd625d693aafeeebb32ba23ec. Chain 2 (Bitcoin): anchored in block 958776 (2026-07-19T20:11:59Z), 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/QZVEM2557259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa88579977652014c740841523fbbc0574d0448b68ff30cbfe259c8211aec4883. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZVEM2557260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfeb405d4ba59ef6d962584938c77034450dc93cb1ab0b8327321c8e54f5ba8f9. Chain 2 (Bitcoin): anchored in block 958825 (2026-07-20T07:51:40Z), 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/QZVEM2557261.