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 0xa3120b311c446039315dbd763953beeefb0768f5d96297f3312e1508fbaae2a9. 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/2ff3efbc-ab60-420e-a46a-93ccb3205cf2.json and https://artists.proofprofile.net/proofs/artist/2ff3efbc-ab60-420e-a46a-93ccb3205cf2.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 0xf17163a39d8920222b6ac4196d98e8f212e90194d47d4852dbdbdae509e68044. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:33:19Z), 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/CH6541750483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9644d104abcbe003d714e7e65ecbc8d5bf5f361b7ad22975b0d47510efe9d49b. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/CH6541750485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fa728d2c89df2c361d9982b20d79634db8fba5447bb18a049033d2c7b43b98b. 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/CH6541750488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3daa32c6488aac845e53bb1d913ebd11f92be8029f9ba8b752770eab416a7fe8. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T08:24:56Z), 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/GB8KE1550324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ccbd56886b256a87b3db192c6e32212e99092c45108df28032704d93392d0d7. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:21:44Z), 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/GB8KE1550328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf66233aca31ab091b9b5258724d0524c28ed97dc5977455bb568ac3cf6a47f6d. 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/GB8KE1550329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x135a40bb486bdb46ec42bd2fcf2bee599a823071c4c143b2ab9764c179665e6d. Chain 2 (Bitcoin): anchored in block 957573 (2026-07-11T13:43:13Z), 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/CH6541703745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc596b33d42075fc95d04b89f757ae8d59271e578b6177b6c0a1ea9e1cc2551a3. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/CH6541703746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ea0d68ee8ec3e21d5956359627789526bff596ee9f18ef482fd812acb41a4bc. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/CH6541703748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53ddc0096076820ae2a53d913671e7fbab83e1c368bf5a425352b3ec831db672. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/CH6541703749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37f4513d8d2181313cbf469ad364ef93606d9f73e498d8a98386a180adc9c063. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/CH6541703750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d6119fbea3bacdc7981fe3bc38de00083e1b393ea5a51ed6482144a01f98c7c. Chain 2 (Bitcoin): anchored in block 958673 (2026-07-19T05:38:28Z), 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/CH6541703753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a6e74e24bf82a753df262ef0111c108a6a9c97f62f870d660fc8b8558225bf8. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/CH6541915436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa12c9308932bb6ed661d0a984d8101111bc4d6e0d14d2ceeca4b6bb170179ea8. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-20T01:50:19Z), 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/CH6541915439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ba00a9f953d3c35feb6f01d041ff66800981664e0701dc4b090223dcd638955. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/CH6541915445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f92e9ad618c3599139d33b82d105cc949647cca2ea5f886cca7aeeeb3f1a3b2. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/CH6541780943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb96d938a138be933a4d871aad8106e9c97f22605bc06d16b8c806a7216943be7. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T02:31:22Z), 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/CH6541636465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x702933a4507a783ec1c1671e68be92bbb3d98d43b5adb79ecdbe4dd6492a422e. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/CH6542097681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2b8a89574d3c7a2e03e71c4eca6ba65efe08450ee63bb7eec4040e7abb6f1ed. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T16:02:52Z), 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/CH6541648685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bc962c069648cdd118aa7febef805226f5cf3fa216584897941052500139c55. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/CH6541648686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x297c96bb5104d2242b8a5640768c7350bba458a18f09a1250cbb3088c124c374. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T08:24:36Z), 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/CH6541648687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29369f41f6bc7896f1da6ef8c789bf171d1f9ee9dc9df449597879038f09387c. 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/CH6541648688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabde1fb70d7ab58a2b6666eba5dafab5ac9a5c71bc3e6621998215759d5ea31d. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/CH6542115322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb98b52bf7c3ceac62a4b31a1f8b89681babc679ea3f6a8088bf8a7a5317fdd5. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/CH6542213354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2545a2dc00b5b0cc59e7ef3c967c7317f692186af50005a8d173ef5dd489e8c4. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/CH6542213591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4e5741baa8e19de1abdf83aa99111ede23ac92a37fbdd2f752559ec21082fb4. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/CH6542213607.
Як Ти Й Сказав (Save Ukraine Live Acoustic)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b4ec8c4e2f8a1b5429bdfcb7575fb6b3307011c856a8ea2779766701b226287. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T21:33:37Z), 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/CH6542225103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04b7025899ecdb1ff91958b7644207dc03ffb13bba3c6b483adf503fe2960aee. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/CH6542410210.