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 0xc75f6fe9c9423725d9a60c1ae1b3647e93d6305e66adc6f7a28f13ca1caaa87a. 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/9b585169-49bf-4c04-ac57-b2dd337aa28a.json and https://artists.proofprofile.net/proofs/artist/9b585169-49bf-4c04-ac57-b2dd337aa28a.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 0x4d5f190480838ac8dc1ad8402649f90ff67e68cb82ca186a3fb30d15f6e908a4. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T08:02:12Z), 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/TR0010600181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66f1d5f773af8d7cef757518c3ec5a95cd072d3ba34bf5d11268648809a073c2. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/TR0010700248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7dcc810b1fba19ba5b13466b4029cf6967b1cdbdbcf25b23e2cac9778c0cb9a. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T06:27:23Z), 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/TR0010700243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74220c640446fb3343d5321cb184be48425852ca5379377008642b184e936b3b. Chain 2 (Bitcoin): anchored in block 958850 (2026-07-20T08:32:30Z), 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/TR0010700258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdea2ddad15a442c0c19a763d0eb24427d0f287bde15c6124efd7cd9ba920c87b. 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/TR0010700259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x738fb4bacdf98031cbbff8532f6ca4aa07d130ba4dd6f5a11068e9e642037e4c. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/TR0010800047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91ff8c48de4fd73b4d56a23dfd4f942ad4fa2079f98b26e7b9f0253a3fc9c420. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/TR0010800053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc047e802b2f3dc567a979a504ca2a6c7a42f775acc84ce2bb33d0f04be6a38a3. 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/TR0010900194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef471dfa97263174821191d91b543c7f7b32d35f1c3fbac4148cd96f09e3404b. 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/TR0010900195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3e99ee69cd9827dad0ac4632c19aab8a64f5503ea20b530241e6a131f827d10. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/TR0010900198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0301b59a05fd6a07d6db26eef06ba9c3ee2bb4dbb5b8d90b8eda2d9a03520466. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/TR0011100182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa88c40030038fcd6e07c313dc48a8217b45c7b1056a8f3f3635db5fdf71fdf2f. 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/TR0011100184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf9f6380bd2d65d2950a0699753dd352b38ba815ce31749a097e3871367e7a3f. 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/TR0011100186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22bfbe9789c3db7ff9d216451385f1e56ab71cdc14e2dd089a72498d2b69f806. 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/TR0011100185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a540d14dec8477da5852d7c60b2ff4c4f7040518a338d13c781880c2c29f2f0. 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/TR0011100188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fcd50a62a0a38d2c78fbbcc5f43baf866f3bf86705a864359127b51074a2533. 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/TR0011100187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79d4848eba762eff3ade79e2385f404f08f10033c09fc247005e9057cffa3c4f. 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/TR0011100190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e625ad084e8c1b28342cff9a7e2ee5104a7921f430d7fa600faa2a61a7ca35d. 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/TR0011100191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc71a5efd64da683ac41ce37ff168f7f1d08a34054a3c1576de9f8f3d07a11ad. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/TR0011200130.
Soğuk Odalar - Hüseyin Karadayı & Serdar Ayyıldız Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf790072f047f02e820ab2fca442332af804efe4ca2e4ac2921bb9d16ced8c4c. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/TR0011200132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7e0e3dfda3c9f00ddf04eb80bf6641f7834191ec45f6e06ed74662fb589ccb7. Chain 2 (Bitcoin): anchored in block 958617 (2026-07-18T22:07:13Z), 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/TR0011300162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20372422c760499ffa910067c68ed345eae657b67dd401b7f1e16a543b749489. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/FR6V81601985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2409bf0f8480c488ead846cf95716f0607e2b1df311c54289216bf7d0c57ca35. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/TR0120700855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e284de00117c2174481ee4658668e04c8991f84f1ae85b268d66a142d733d22. 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/TR0121001185.