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 0xd765290618c4c4a2458bcc000b9e65e5553e682c7e7f0bceb4b78f7b49a3412d. 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/ce75f21a-6524-4114-a5c1-7063c134418d.json and https://artists.proofprofile.net/proofs/artist/ce75f21a-6524-4114-a5c1-7063c134418d.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 0xa899fa1a545912dd1fde39436177ecb23083f39f07249d64cf44ca86292a365a. 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/QM2PV1692881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5edbb09e551b735f72c156dda30834312db2890b0cd40111357e466cec8e5172. 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/QM2PV1692882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d90db73b081930b63547c5f4e335e604ac1b72782c8955e7ddc5567a441950d. 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/QM2PV1692883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09cc9043467b7d1b9b7787d56d276553bc08adcac3db64d339660a65a5b7e56c. 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/QM2PV1692884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec3d38e8b21850e591eb933be314b182de6bd2a6ffbd8773657fc3babfea3f5e. 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/QM2PV1692885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2637504d6402ed19415f251afb46a31d2affea2d40f46c72255ce0c955ae07cc. 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/QM2PV1692886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22891a5c51be53e8b34290bd37ac3f8553cef0540e22400fd88a6cdaeecf599e. 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/QM2PV1692887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32bf586c0c4416f9cc73edf3ed441b5b4bcddf3fc1d428c867a57a0f58cf798e. 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/QM2PV1692888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bf00063333616343b7b88806df934e7de08c73257bc5923df4e6b5cf662c197. 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/QM2PV1692889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb11e2a69746c7717d8ad1b85506abb9be3c387511cee258b7f74539166ebfd60. 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/QM2PV1692890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33f2bd0b0646a996e57636d2d3c58fcdd337f4ac64c21881f7a8704203a5d15b. 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/QM2PV1692891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23ce11cc446434f9f0f9ef0117ea8e2fc6aaabb104714029aee1abe1b5498834. 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/QM2PV1692892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd9ce078f6ad59cea17a526f44b11f69648bd07467778ff94fc690ea8b069403. 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/QM2PV1692893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5edbb09e551b735f72c156dda30834312db2890b0cd40111357e466cec8e5172. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QM2PV1692882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec3d38e8b21850e591eb933be314b182de6bd2a6ffbd8773657fc3babfea3f5e. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QM2PV1692885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22891a5c51be53e8b34290bd37ac3f8553cef0540e22400fd88a6cdaeecf599e. 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/QM2PV1692887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bf00063333616343b7b88806df934e7de08c73257bc5923df4e6b5cf662c197. 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/QM2PV1692889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb11e2a69746c7717d8ad1b85506abb9be3c387511cee258b7f74539166ebfd60. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QM2PV1692890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33f2bd0b0646a996e57636d2d3c58fcdd337f4ac64c21881f7a8704203a5d15b. 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/QM2PV1692891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd9ce078f6ad59cea17a526f44b11f69648bd07467778ff94fc690ea8b069403. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QM2PV1692893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9944eefc3454fa03537f004f08c18a47db71c0c4647074ac9c6c1c3abb374c0. 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/QM2PV1693365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x536f2042af83c8b2cb46917089bb1034e48754c1219556df29e4114e02f9a319. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QM2PV1693366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cdf592f598d4e82ac9c1fa935bcbe3ef48783362dce2190a936c40a002fcebe. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/UST8K1613013.
Pompalamasyon (Remix) [feat. Mercan & Sultana]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefbefbf69330ce9e4a79989220e8e50d216c13e568856ce3cddb20518408aa3d. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), 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/TCADS1874911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x283039ceb5891f82331faa1b6e70eb26725fc87c55715d22111ffec15bda1f1b. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:39:00Z), 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/TCADS1874912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96090aa5480f9813e591ac061f75039a78758d62c67ee00473fe11f9edb4b621. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/TCADS1874913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd48629d1dae2d0c656987306ac20afd9ba73b6015650231195a77d92363932c. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/TCAEL1901106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x063ceb20a9463bf8c3394144eda328bce09a3afa6665660d28e4091706f15c4b. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/TCAFO2150168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x701bb86dee3a255d782918974b21799b9292512002b3b217c6a941a14b332007. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), 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/TCAFQ2122429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x701bb86dee3a255d782918974b21799b9292512002b3b217c6a941a14b332007. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/TCAFQ2122429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x142f05e736012679ab1e5f781d38ac65a7f81e57969161417c415b50ae48ef8b. 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/TCAFR2119099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x727a7dafb21c010a306fd27ab7d447d0400a8464243a748df45e0a35580531b8. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/EEHU32001028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x727a7dafb21c010a306fd27ab7d447d0400a8464243a748df45e0a35580531b8. 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/EEHU32001028.
Kötü Bir Gün (feat. Diyar Pala & Kamufle)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca4dcb5e7d79127133d43f357ed63622a179e551d8a2d4918af54e4e620bb8cc. 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/TCACK1594924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd6552a33f55b82a950ad1962ee7510da3ad50da79c24d7cd6b46086cb3b7e6d. 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/QZFZ61915622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5f79c6d1d86acfe8cd6b8082b823456221b579aa8c5239d6c6742394c7a64b0. 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/QM4TX2199937.