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 0xeb5a0747118e03e80b0fa404c74bca74cdf8190aee7d3f09c2b0af35b3a224d1. Chain 2 (Bitcoin): anchored in block 953674 (2026-06-14T19:07:16Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5d3d8eee-a83c-4f4d-bb1c-fabdc926f647.json and https://artists.proofprofile.net/proofs/artist/5d3d8eee-a83c-4f4d-bb1c-fabdc926f647.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 0x7949a9faef17baf1abc71f8f8868152825825c18ce32fdaeb96d2f14771f50dc. 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/QZ5AB1792827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07ed2941c6fac2bddcfad05bacd4a0bc04de0c38b04b3b56870e194e235c4017. 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/QZ5AB2077745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cc8ab885f7d14466164f63c33f4a8f8782b8d6026fb96b426ee117c195bbb97. 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/QZ5AB2077746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f17ea65839ace89d0ec6c80a4616d6507fe15a8d6a7bf380457837ac51a96c2. 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/QZ5AB2077747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60607de64036adc51352ee0099ca86f5d75228eb876a534cfead7d54aa5645a6. 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/QZ5AB2077748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xede35a84db851bd0f21e8afa01b9959daa427dd7b983a64f9460ad53158d9df0. 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/QZ5AB2077749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a3e5103e51991c9ec357ac4eab481d8995f4d2aa0f2f88703e7e861fd14c59e. 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/QZ5AB2077750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1666d964538acd591508b837274f43a141d530cca2010be0de7edd1cb869470. 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/QZ5AB2077751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9513fd7c930ba3deeaedc7473d413f107ce076310857c8e97ebd647c40a1790. 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/QZ5AB2077752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb61845a61c52732afd492e7294cc4c177f477ebba2e5a1c26e9eba7bfe8d39ff. 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/QZ5AB2077753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8280e2ac7216ac5c6533398c29ca7a64cdd3f65eb2053bcc5ff47573300afc9a. 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/QZ5AB2077754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfd2b1d739848793c8d4cf7108576988e87ebfc54744c772b0b95380fade8732. 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/US38L0802693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x366f0af5b87aa3e432f5be3fe1725ceddf17c69745136c45851e0d47f3d7dbde. Chain 2 (Bitcoin): anchored in block 957065 (2026-07-07T16:43:21Z), 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/US38L0802695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42aac2638ff36daabb4cd7b0acca0fdce30c19a5c0231fa814b397d111fac3de. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/US38L0802699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8930957250206f4e756d58d9261e40b3e75afff75c195ec498829ae52515239. 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/US38L0802700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x182ad88a27d512af4a6ea37aacffaa2ee400cc58074217a64e5c5c8310610f5c. 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/US38L0802703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa38bd886b7b48308371034dc4d08492d05458bc4a135fa8615f564c2236358ad. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/US38L0802707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd0a77372c2d0d8fee365604805c02e87af2a704c88a1d522b17fa53684aec82. 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/US38L0802711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd010e828585f2d80a5c1e0e6101455dd83f25a317956806a0ef64421bac1b8dd. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/US38L0802712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c14ac6f45a9a2b0a2f6846739acf8d5cd128d0d4ff8d344f53da50687b6d7db. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/US38L0802713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x981f958cf45ef29059b3608cc555ef1b602a46c7cce5a2dccab2f1580fdaf86d. 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/US38L0802715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28baee16f6734d39223f36124104b5557c39e5efd2a2daa456a467c63493df5f. 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/PLE351500009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec96bf217097e7723a4da3654067049e9a5a52bf9d0ca8ea0f001bd5e2cf77ed. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/PLE351500016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x325b389b744de06169db90218a4c116c0b01224be8b4f3c3238f2bd04f607187. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/CH6540832709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ccf611e53b8797e69b4dea886c4d5c645d3456c84702014d31c0ed3f426db67. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/CA1NM1210601.
Kill 4 Them Diamonds (Velvet Chang Remix) [feat. Sillyee] - Single
Don't Get 2 Pieced (feat. Mugzi & Kaveo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04aa11398e565ef1547e73057a4d30bc5f4e418733585b250a6389a9373c7512. 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/USQY51351850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f1a2a7ce1c963dd5a55bc8069678510dd27c453d5534f088eef441b66d9513e. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USQY51351851.
Throw It in They Face Turf (feat. Droop-E)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9dfb905d10397cf71733a20d4f818c1ad23781e83e2a75d487efe7089505b5c. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USQY51351853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5a97737ac4b9d5b3e88435807f8ce507f59827d742bf9465792394368288b64. 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/QZGLS1919488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39853994f0c3c710fca939f326f6c421dfc78508367e016ef1e10b86a6b97b5f. 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/US7VG1738852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e752e1f49cb414c8242c3385004f245f6b44877bb31731c83c6645656b15116. 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/GB8KE1552794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d7351d253d46b55cedd603cd9db009b0715542b52e7bc47bb7028f9099a2bb2. 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/FR8GV2338180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd90c57842992627238511bcfe1d3aec5d8a51fb112d98a3237290f215e5db94. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FR8GV2338200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab4b0824062c448289dd6ab1586b2476055a74421299135f0452ca445a0c6a54. 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/FR8GV2338280.
Figueroa Ryda Gang /A Tribute to B-Brazy
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b56f0317768f4dea10e0eb0062e25c7905927822df666a9b69c6c55aa265b75. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/CH6540839028.
Limburg Laeftj Met De Vastelaovundj, Vol. 6
Omina Laboratories Presents: Gangsta (feat. Bueno, Lavish D, T Nutty, San Quinn & Dezit Eaze)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb201bd3771dc5de8e9f4ceb8e9fd6d1f712f37f88940fe495d232665a435958. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/US38L1300098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cec1d4f406264a15d8b0a3e3d2cfa9c1e040ae97f03c3e77db37f0796689f55. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/US38L1300106.