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 0xd66b619552a5e582866c9a65d959309d05afe061b615d087fd9456b6594b5a86. Chain 2 (Bitcoin): anchored in block 954603 (2026-06-20T21:47:54Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c11d3291-3ff1-49a5-a7cb-c130a6f1b854.json and https://artists.proofprofile.net/proofs/artist/c11d3291-3ff1-49a5-a7cb-c130a6f1b854.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 0x3c384801b5423cf11f111c50e3cd8ee08d030baf18a7d5c33ac65aa2c11dce7a. 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/TR1590600386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20ee70d4db43545d85cff5213f36657c18e2d82611fc1118dc669a7d9af82b73. 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/TR1590600378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd3f7dadaa0fbee29d738c524e383b7a2c80608652f5f12d44ca87e64ccc0de9. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/TR1590600380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3791f252d4e2253709e2ae1d0438f50dd7be23e3d3bdd5ee6599dffd1c1af1cc. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/TR1590600377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecb751e6b6929697aaea61dc16c2c0250eddbc146adfeb378ab6fb1c8abe1ca8. 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/TR4951200034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9516eedf90aa3e37eee9e9b00d5d479dd84d5b13d67ac0f2189fce6155995c5e. 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/TR4951200033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a53ac61891fa5200446110ec38eef761ee69db43de03b67a89df8b96d1c5bcd. 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/TR4951200035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1618a1cd7670d49d8f50ac0de5b674f7fbeeb622d4b3a5166651cbe766994990. 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/TR4951200037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83ebb0c5b0b507d65014cd91bf23c75d7c1afef16007b208a27c2587845f55ec. 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/TR4951200030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd6e804537569ebe926c9c5863cf874cfbdcae4c60b77244719ff7a0cb9a27a0. 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/TR4951200031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9272b1885515955bd091ec06b9fa541f1836da82efd3ecba97275816c9d7a82. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/TR4951200036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb70fce7ab0b1c49261ccec321dc19053715ca643095df98030463f5a8fb521f1. 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/TR4951200038.
Rayların İzinde (Anadolu'da Bir Tren Yolculugu)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9152cbdc4ee45d3a61e51ed38b75e1d6cd1de9db7e03c072aafe2f899b203a56. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/TR0220501066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d4bfce7fab5099cccfe726c026ca5b4fb80ba883d09e19131b09403276339a6. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/TR0330600714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7d908ce0a0c7821cb1311270ead749590c83eb3257300a0518851f0041a0cbe. 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/TR0330600713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60013ca4ba09c287c7a76e18bd5803de4d8a3134c523ef877503f0e0a4734223. 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/TR0330600719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccb3edce8ff14ebbb7399de866e66976762575100b41c953a593c069156781d9. 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/TR0330600720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa417edca375263d9046500abea88dd081f9ad8ceb9497e59a2ce903d9873b03b. 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/TR0330600715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19729560dd011b99c03974c25363e13be139c8a18ca4b927f6e4c75370e44b00. 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/TR0330600718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbdbcc411eb4afaf328054d5a397045f1495464d1fb38f1f19b99d53cd1ed4c6. 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/TR0330600716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x010e129f80f57be56b0ef0ce198c59e6b1e1224fb5c65da40fa999f99e196690. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/TR0330600711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ed0e0a254697f6d179a6ccc4ae7be760570469b84239be36e5105e19ffc824b. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/TR0330600710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe67c34e5a315afff5f64f3cf02ae4d77e55ac126a7109cda498ad4f3d611b202. 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/TR0330600709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacc6f0d25243b3d52aee31923cc48979291f51f7e519b513a70041c50c551035. 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/TR4951000052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe98f7ba6e634cc93dfedbc22e11dcdae637d4b79b04f7b27b20223bb218006bd. 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/TR4951000045.
Haberci Türkiye Renkleri Belgesel Müzikleri
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x600a66bb13e2c6dc6934d6bb69eb737ab67c0f2aa3e37775bfc8b2fd383e88ba. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/TR0220501061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d2eb37df97c9b83923a5cbcef8ae1c743129de9d843f62066204e63f41d24f0. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/TR0220501058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9152cbdc4ee45d3a61e51ed38b75e1d6cd1de9db7e03c072aafe2f899b203a56. Chain 2 (Bitcoin): anchored in block 960513 (2026-08-01T04:52:22Z), 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/TR0220501066.