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 0x0047ac2895909474dbdfe253b3bb06e8f9f6df2ac0162a7f0e0704ae92fc8bf8. 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/f7b131c1-91b4-4361-9d9c-9280631e37bf.json and https://artists.proofprofile.net/proofs/artist/f7b131c1-91b4-4361-9d9c-9280631e37bf.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 0x7271fc1991938ecbc68ee87a1aaad48a0a9702a2737d2d02a940f6fb77684847. Chain 2 (Bitcoin): anchored in block 959073 (2026-07-21T23:25:37Z), 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/TR0330602640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85ae49340aaf1e2eccc6610a6212fc226141f58808582da8dfc85b4a47b54b2f. 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/TR0330603848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0123b4fb41fd27e2c4a47e7a78d7e9b946470eed3945e72046928890a99e6927. 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/TR0330603850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbee4dc4de9b878f2b386cde9163c977c2a01b840f975cbc0426b94e2cc6fd938. 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/TR0360600030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9046cadcf630a80dac374dfe1bf799062cd734154554168dec6b517d020dba3a. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/TR0360600039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78d6898d9330b21e7ee904a28ab2efd2a22be0ba44f80f69df875b4ee5457919. 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/TR0330806742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80100a39de738c8468ae220f1b6789059c8594550ff15b5119db149516981f9b. 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/TR0330806751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x972437339948aea1361faad9af381ba315aee7f731f31135e0fb2c49df49e1a0. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/TR0331209138.
Bana Gül Diyorlar (Feyzullah Çınar Eserleri 1)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e361534df3b3a8628ec5e4da9ff8c74d7be5f2c61a6c631872a168f4cd64f76. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/TR0332400093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5aa64e9f10001d3bdcae93c4d55ed9208e187d054dd092d3d66196f41203a8ab. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/TRBBC1800136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf24a4fd4ce1fd6c5566fb4fdce90572bf1e5343f3355f6565a32dc6a5973924a. 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/TR0331510019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e0874690af4e2e0886c166743167282ca732bc5a051a824821ea3e1a8af463e. 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/TRAOI2300103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa03b16ac2e6602d01bfa49235a3af53efcad3ffdeb0ebb8949ea8b5bdc207fe7. 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/TR0330906987.
Pirler ve Dedeler: Aşk İle Canlar Aşk İle, Vol.2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71b9a218e6bdedc5b51efa8cd8c132634c50a853519b56ce347152f6e222f848. 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/TR1591603533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb05877b2c47487fc1628577dd6272c6655eed26ab2f4460986b51e67a085bd58. 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/TR0331208623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fdf6b0ca68fc480cf414e026aba620dffd54b1d8446642da5fc4edd7af2baa8. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), 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/TR0331208627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23db4d0da830ff24f4d06d1ef7d21dfc47f107f2668e9970631e530cdb65e666. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/TR0331208625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ce3ceee5cb58af6128d8823f628b8f92a288c4462d696195f514c22c838b160. 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/TR0331208634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x724089ac00fc7041ed3c169eb89f8f9ff64782ae4c9b8b52428309970a564e1e. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/TR0331208624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf45079540422b5e7c5556a6096bb88853dd831a5b1fd3c24bf43e6ab5eaf666. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/TR0331208632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b2f7e17b82fe24f395799a885e1c619a0dffb7a794f32a3858ba49c63b4f873. 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/TR0331208631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb41cd9d51f456368d55fff0f726e5ab94418832cab43ca5275cb3210446ce1c4. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/TR0331208621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d62c6bf8e488de68667a4a650dc294e7936ea698b6c45e1ae39241b8f65ec1b. 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/TR0331208628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf83ff14a6d3326f71fa4a336acf81a792193b55d464fbda91d0cb9233bc1915a. 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/TR0331208635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a32abb475f09290d56dff01c70677b403699774de5d38ffd39d0af2ca7e0f7f. Chain 2 (Bitcoin): anchored in block 960163 (2026-07-29T23:20:38Z), 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/TR0331208633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x506ca211ba812df5a47d6097629f6a962b2c6b8f38fb734bded1505a5c97894e. 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/TR0331208629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa80fa9456ccc722017d25b60fb9ecf12c953198e03fb5813e5b194a28396a566. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/TR0331208622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe092fbc7660c5a12f10c06c4162d2ba7375db039bbacb13e23c7e66252fbbe5d. 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/TR0330603411.