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 0xa506d93e9bc326e96e68a2b1d19a0f0ea19a41ba3c68e6816cd36575ac48ad71. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/31f0c1ff-b963-497e-9c05-e894e97e1c24.json and https://artists.proofprofile.net/proofs/artist/31f0c1ff-b963-497e-9c05-e894e97e1c24.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 0x8b4733d4e7edf9a5bf76c6e314395b92cf0d70521f1b56495a05fff5e1bc6c48. 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/TR3431500745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51d1406b1c436a4cd428095a0351a380e73db3ea8217d0e478cab7d97b110b26. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:57:57Z), 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/TR3431500744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2ea4477f567fee6e651b8ebe8fc18ec6523eb2d45327b0262371de076178441. 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/TR3431500743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf9f043d9e76d3150548ea55e016774cd3d0de1033ffee02e6001e9f20bfa8dc. 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/TR3431500748.
Ötmesin Bülbüller Solmuştur Gülüm (Bozlak)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f75290203ecfe4ca9d2dbe9a64206ebd9e27d5523247d65ff5ac50d479f6d2f. 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/TR3431500741.
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 0x3ec291a95ba5632e3effa48c7dba103a3341865dd7a350da996ea528e5770344. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/TR3431500738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x583b480371b940160c4e3c1fa1d18c22708fa7efc689078ddf3e131d119f01d5. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/TR3431500740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbff2a8aff49514d984fe7e33321484d8fe6ef63836300bc5f8327227e4f0bfc. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/TR3431500739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6f4fa53567e6121d642e5dd8ed3a1e4018e1b8dea0ae3b6ad360510c54f6731. 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/TR1662000019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08999117f25b42119fb6ec4495fc640f15bc9ad8e20b40945a15bca278053db1. 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/TR1662000020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d326be172967055baf98125014f6771953d11f2a07dabbef20fd5dfbd14af24. 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/TR0331811414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9f2d221f717f300a14053d8215e791c202ef19b21b12dc047e0da3cbe69d737. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/TR0331811403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6785d12798b04294a5d18e1c51989beb885de878171680a6590604286344b8c. 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/TR0331811416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32e90bcfdd6e491b82e390dc981ac66c213969874bade0bc99b782324c56de6b. 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/TR0331811417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f40455983c581490e760433eca3998db40a0316683b4a1a20a82a0481c5f4d1. 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/TR0331811405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf89dc654f02f26466bf90551d77650e979e3c94f66402dbe6d0e3049624588a3. Chain 2 (Bitcoin): anchored in block 957056 (2026-07-07T15:15:30Z), 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/TR0331811419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1673e23a4af500a0bdc262e6b0e1645b941a48b376702add602b627fbaafdfd1. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/TR0331811407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d6a9b314050575b430d4c8ffcff50cd6a3b32f7c0bf214ff2474b62f5bd45c5. 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/TR0331811409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd21f31ca8cdc27316da1de2bea5b0e92b363a2ff9a20366ae5f35249c905085e. 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/TR0331811422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x478c4f9dd0ca0bc7b150e91e0fc49c5042e65f3e057a079014ed9b860b6e6499. 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/TR0331811410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04d35c41a53a86f20161fd2543d95763a40e4cc52fcfc444b025a0055597f2ac. 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/TR0331811425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x122cd448b308b6a1a4dcf84c3d2ff9fb0ccbc08ed056a2916d4aac9333eb2b94. 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/TR0331811413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b57127c4902d07b55d8eb555297d936a6b99a7057e5047fecc725c396dad641. 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/TR0331811426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x536b4018a5bc3115f67464f71c83ff2609848b2ac26f0d1e694560a9a04dda47. Chain 2 (Bitcoin): anchored in block 960503 (2026-08-01T03:41:24Z), 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/TR0331811421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04e5d67138fb5a456ae8da51083664faea116b64436afb11da9ebc12d361763a. 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/TR2201204784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cc2ebfbac63b98559888d4b9a3656c2f35f59c48b1e4d0ce273baaf8fab0799. 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/TR4952500086.