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 0xf4c23a3b80cf77fe68ffc7d791bc24dd732a010ec727e85051af5223ff260c5b. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4df05d97-9cc2-47f2-b45a-33c512feed9f.json and https://artists.proofprofile.net/proofs/artist/4df05d97-9cc2-47f2-b45a-33c512feed9f.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 0xdcb7fe98b05fe5bb7d2d28da58354bb47f8aaf833a757bc68583cea351e69039. 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/TR0431001986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x048104f3173104dcf26d1db8b0c09caa512d19d25bbffbc2c7ecaece3fd35e9a. 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/TR0431001988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0eef3e789acd3d5764b7931c961f64e0a0be6a0f7c2ffc5372691f440258aea. 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/TR0431001984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3920ea7fe24420e29dde3ff1379cbb03f49fe0060329557e94df565aca0f3f4. 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/TR0431001980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d0bd487ee267fad0a79ac72096c6c94a0edba18e6417190cb963aefc5cabc6e. 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/TR0431001985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4104bb1748c402a3ddaa486e84aaaf8fe47f4af9f87526787dc6a1151a036f7e. 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/TR0431001981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x790bebdae018948e467d6a36083e0667592904c393377fd8ea92bf366df4ecc0. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/TR0431001990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccd0dbd2209eaf737d7eafa056a5bc33d3ba500a3cf8971978bd9729c96f4c9e. 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/TR0431001983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08f16010daf20c7f36006941d6d6f0ea17646b8e9949570e95fd862130a0cb42. 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/TR0431001982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x770208c60c6951da13b108fe3846cbdbc451d46d0d4ca69acbe66bae78a5e1f7. 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/TR0431001979.
Türkülerimiz Var Bizim, Vol. 2 (Yusuf Gül ile Düet)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bbc911b36dd6abdcc53ec9b942f168a96a2def9bbbe111bb5505ab5e6af23d5. 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/TR0431302426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb13277411ca6da394eef85ffc059e4700f7aa1ee3c03bba742bba6f36c515c2a. 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/TR0431302420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa351ba81a4dee83369bc70c68c6051c5a721d66bf6d1902b5df7cc34d877d714. 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/TR0431302421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca404b05e12c3cec25865c99a1f4be35980334e034710079d6c95188b247699b. 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/TR0431302425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbce21b16a1beb7470921c4d5eed3729605c943413dd16e581a3d881d6c738237. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/TR0431302414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb12be1eb668f9ce46475dfcd9f27113f9bcbf0b966163a696351d6d422a7381c. 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/TR0431302418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e9703698a88b4c346f9c9a2e660687aedee20bfe1fd1c5980d4fedea0f5c64d. 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/TR0431302423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc551f071af52c3f150c57ba941443f8301bf38f2276bb08d3c03982f6b5821b8. 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/TR0431302416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x352c4b07fc67b8d53fab4bb7d5c6ba32baede62e91d3b29d97cf1c156a8cd954. 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/TR0431302419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60139bb9745b9ac16bdcbc90e91ae115dd48cb117482c514083803c8c8087bd2. 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/TR0431302422.