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 0x794348f9193866c3fe67567abf7db989ecd3ac7e41a9c8e986a403abddf33b40. 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/f22bcb9b-8dc6-4296-95ad-71fd82346430.json and https://artists.proofprofile.net/proofs/artist/f22bcb9b-8dc6-4296-95ad-71fd82346430.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Bil Oğlum / Bu Bayrak İnmez (Enstrümantal)
Bil Oğlum/Bu Vatan Bölünmez Bu Bayrak İnmez
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 0x741d171b0be2254e5c18c19d71b643bf9726603ddd8be2f011a6c1ac171e0716. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:42:10Z), 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/TRARY1800273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1250b682d920b05f6ebbf12b475b305f4214dc264919ad6ec9917fc4505a1e0. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:39:26Z), 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/TRARY1800277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31a7e5ecac2de1f50b74a2f766668fe9258a4f4e444cd5a3ec8c29896a1266fd. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:47:54Z), 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/TR0410800847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8ce6ca431d5a41417353421ca0d53b586ca64b7f3d8f18bf684523cab20a546. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/TR0410800850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf381a98ec424a7418ebd53a5a8953073cbab7f8641e42155ebf537a6c77c7f38. 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/TR0410801198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb915869cd0bc2d5b4026d6538a1f86d43ce6f80dd37194147afdc469c7a9987b. 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/TR0410801203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30c589d5ba76528ecd6d25068bf34009622ba26f5dac4cc46fce1f667d5c10e5. 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/TR0410801199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefb035724e830dfbe670e4585bb7d58faaab69dd9db3cfb6eb393a25ee2a6200. 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/TR0410801197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6f212227a1333fe6a033d95f7d8edb9b449c030ba04e68492924773e1c2c815. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:50:20Z), 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/TR0410801027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1ebfa10651f63e1660eb49e97d6cdc1bbbcb387cb7834423cd0adbfa4813c33. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/TR0410801025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc60508a70aa790b60f2edb89058cec485fd6c0179f63485c79e3393ffe801b7e. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/TR0410801026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96e24d3bc028c02a42bd8261f3661f4d16b9c8e1bc3b7f79abd9a21b7dd6c39e. 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/TR0410801029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x758269782f30f4def7c3ba672d2a07f88ccc42c35ba0d1c6ed16800fd7b88d2d. 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/TR0410801031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a80795ec83dd645fbef9601626ec400faa13b0c9abe76fbb39481e448496166. 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/TR0410801803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82359eb2100b3362727a97113cbe51deee9b8195bf3e163363fd26cbb920aaf1. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T15:34:27Z), 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/TR0410801808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc3dcf1e2f2c1f7b3b1e9525b742afd024bd0114d97cfa841aa9bb41208e5d6f. 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/TR0410801814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64f0d0c025a3e53ac852c4763012830e3738994bf4ea96588df262e56f31b5dc. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/TRARY2100390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb193776841eb265845306bed17351ee6bf1ad65f9e2a734bd118793e450a10d5. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/TRARY2100297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x801bd0a3667d09aadbeb2e73a9c7f82399254dc5c933e16a065b2649e2cc413b. 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/TRARY2000296.
Beste Beste Türkü Türkü Abdurrahim Karakoç
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x338124187fe8a867195839779f751ece1170abaa58d7f03618124e737415abf6. 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/TR4041300423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x486cdeef093a3e6f58b8d88027515c24f0374d6e590c5c42d4f98e99db942a88. 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/TR4041300424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0cf74bb6f6ddeb121cea64031121e76565f34a58538a883385251503b5132d3. 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/TR4041300425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaf69473f9399e8559be1393f5c88d5338c54050cd6792a8729ff28714d5fdc3. 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/TR4041300427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40b2e753dc013e90df331a8b291d4414bf785545a45218c657d79d70dc420e46. 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/TR4041300429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe70a057aa2d5c092016e3cebf0fc3f72468807b5eb208bc0444362d17fc0bf5e. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T20:51:32Z), 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/TRARY1500023.