1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xe6d406d7af7e615db7c72847d99ce5ac40ff124a13ed43824d987aa9a6aad657. 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/cfc93e44-ad09-4367-b3d0-331416956c5c.json and https://artists.proofprofile.net/proofs/artist/cfc93e44-ad09-4367-b3d0-331416956c5c.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 → block OTSBitcoinBlock must exist at that height 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 0x9d478d9eea7900cc235618f9c426376a73bac4aaba583c1aeb7eace087310809. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZ5AB1810019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe862d1d9c1e09795553fde0fc8e772860cc0a14b5f32fea69423909b0a88ab70. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/QZ5AB1633204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9132677e995a7ee7355b58029930b2a59949236eb1f9edba54fea9b342e45b8. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/BRZ101400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ab8c113db296b5bad2bb4616b31f114d3cd6c3424fd3bef51fbfaaa03818c89. 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/BRZ101400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff9b3ff1cd097894be5b486f4bf753d8fea9ef6f1143f34781d031bfbea3465e. 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/BRZ101300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88c65b836052c0fe006b1626ff7501e92ba796475e143c93c8208a78576d0fba. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/BRZ101400020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f22a0cdf68f868288db8d67eb66fd2a32b2df4b9b0c57bc548d03091bbf26e3. 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/BRZ101400025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f15e6a152d093d1a9ba6f15539b34b23ba2bfdf56d23575d0db305f37540217. 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/BRZ101400027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe71d2261312e338b011a0c84eae67d3fb95920368df4e9bd33f16f39da822d96. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T01:20:50Z), 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/BRZ101700002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd525f3a0e1c1ceb6c0a0353f4ccc549f91a0e7e65af09e216bc6a10dc82ae5ae. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:46:42Z), 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/BRZ101700003.
Mis Canciones para Dios, las Mejores (Playback)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x596be6b86df5dc6993905cf5a910df3c63e73d960f98f68a557d4512637c4a23. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T12:03:04Z), 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/BRZ101900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe36ed97053c0ae376cbc6b654fb3386634bfe944658a0b5ab3cbe2255cc155c8. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T00:30:20Z), 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/BRZ101900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80419737ef128afa299ef61c025c6afd546c1db1760a1caf0c7d38a384577812. 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/BRZ102000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c527578c6a827c0ed9ed11d82d3c1aefe25e2bfc6bb6c5c1862476152b4fa9a. 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/BRZ102000026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1532e40c9fc5d77a883ff7b9a93b8c373db5ad4593a36575fe2993762b1ef5b. 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/BRZ102000034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2f9a08851efeddcab9c360f050326c4287d3270c66701e4c4982da9d3e5974b. Chain 2 (Bitcoin): anchored in block 957599 (2026-07-11T19:42:17Z), 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/BRZ102000040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40d7b3376e44681ef2c169518622860142fbb384e66662a9c759ecb5e4928760. Chain 2 (Bitcoin): anchored in block 957599 (2026-07-11T19:42:17Z), 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/BRZ102000042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4e0c482fd507c10512fb0b278207ee2b51482c78118e8176edfd6fb7a429e51. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/BRZ102000044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf49a80f4a849371c3b5e760f63f575dea22da88e9c96bae571ef9612303a5d29. 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/BRZ102300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1efd5d365e697e1b48336c1f3e0ae3f8d22827ea02ac85ed2233371dc93a03e. 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/BRZ102300005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d6c8c320218774c277a829af8824b17c6cd9ef243928087aa990dc4fdc8b3f7. Chain 2 (Bitcoin): anchored in block 957608 (2026-07-11T21:00:50Z), 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/BRZ102000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf04b6b1b737c51dfc4d8571291a0d307302c2955a7c540a66cd1466b89699c4d. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:05:16Z), 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/BRZ102300006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e0c2f4da2589d77e3800cc4967a3e68ae022f954d8a47478e0c96e8f0fe9217. 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/BRZ102000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3068dd7f988e7d9a95c9532049af0fcc16d16c47241d9ba6c2d26619dcd7b8ef. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:24:17Z), 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/BRZ102000006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb94817eebe2e5f3bca4f29c868322fbc15a33c573299ba61708202203f37779. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/BRZ102400012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99d3e743eeae95335481c96f37a190e4e3b578f2929ec9e73b8177b3fe3b5067. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/BRZ102400016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81d4b16c26d132a5c152621bf972523294bff5fe48b7804d800cc805f6cb6fc2. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/BRZ102400022.