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 0xf4dfd6b3a2230f72105241c1cc31d55368b2e6c799631ff30476f34de7c24413. Chain 2 (Bitcoin): anchored in block 953657 (2026-06-14T16:43:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4d6f756b-a716-4686-99c2-2ec816dbe9a1.json and https://artists.proofprofile.net/proofs/artist/4d6f756b-a716-4686-99c2-2ec816dbe9a1.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 0xca7d9409bfe7fac3bbff960a90af95bd121d62b8fc17549d496f8c859ca13ce7. 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/TRUM72300077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65c23302e9ad38ed0fca1709a1859f3ba855d27c9b0aa237463c5df385aa295a. 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/TRUM72300080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c2c4eab8fef049758f4d1464d97865b24cf943fa5cbc7aede20a4f4b805bb6a. Chain 2 (Bitcoin): anchored in block 960404 (2026-07-31T13:06:57Z), 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/TRUM72300213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7edd4d6fb04bdf06492ebf22dc206dff0887dea651edf8f6f4127a501f6f2831. 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/TRUM72300013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3c473cb7dd593d6fe231b11165dcaf6932dc6adb1d0fbf787a334b1a087a5a1. 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/TRUM72200967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65c23302e9ad38ed0fca1709a1859f3ba855d27c9b0aa237463c5df385aa295a. 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/TRUM72300080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc407eca870e5dd65bd079366cf3754a5d5377a94259ab7e84819e8002ddf5790. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/TRAKF1620082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x536944d28de23c087e361bbbd388d0648c8e6a1b963dcdbbf99f63b347d2c2c3. 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/TRAKF1620085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30cd7ebe343059efc205a0e4e84511cc99cb304e39d2ca424cc4298aabfb3174. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/TRAKF1620086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0678bb4087ed8802bc75aa37e6471c695029f324ba52caeb1d30c1cc734dfedb. 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/TRAKF1620087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fec92c444ad2dd047e86047bfbdab2ccd9d11d97c123fb03877b2120b55cef6. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/TRAKF1620088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a63cef42ed4372574b35551c6c8a48fdf0b47a04ff7d092c697892c70f60873. Chain 2 (Bitcoin): anchored in block 960422 (2026-07-31T15:27:29Z), 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/TRAKF1620089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99103603e2190988f1df4a7ea2cb4d629d5de11ae77cf000a1af90b0467af53a. 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/TRAKF1620094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a4a3ecbf502cc410f1f9b3c2ff19a0fa1e277a693aef13406bc248d9a42d28c. Chain 2 (Bitcoin): anchored in block 960175 (2026-07-30T00:16:15Z), 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/TRAKF1620095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x246adb2225a3d40d366ba7cd6f45f9e3954ad7a90d1fa6066cb15beb1746356c. 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/TRAKF1620096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb65a6064271dabee798eea9b72eb6638a944fe9e9c2fd8152b3045fdb8946af. 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/TRAKF1620097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64d3835331078560a44145d8f02b39971d433a67d332b478ace2fe1ae04b88ec. 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/TRAKF1620098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e070622a6049eb4bb98fff7e6de062922ee7339b12f70faf8714b61da5cb5ef. 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/TRAKF1615183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7414a5627485b84b0ab4760420d49bbfd0bac0e1ad9108ebaeeff6ec930a146. 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/TRAKF1615184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa43b8bbd921211b5362fa4ca648036478c274c56ddcc174f2832c8915919c074. Chain 2 (Bitcoin): anchored in block 960181 (2026-07-30T00:53:20Z), 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/TRAKF1615185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2d174a71364411c7aeb804de448f8a5b01377bafa2e8e6e7c450495b22e478b. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/TRAKF1615186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1f1cd80b4c05e85ea322671525700a86bd26cdf198a4abdb6599575c85d19c6. Chain 2 (Bitcoin): anchored in block 960355 (2026-07-31T05:49:18Z), 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/TRAKF1615187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa39ab3dbe2955b05fa0c57918a1353bb38b79db29385df4f85065af54f04b2f7. 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/TRAKF1615188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66f6f39171b0e5b0ea467dd8c1f9f7f6f0078dd43a431462b1b8bff8187855fb. 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/TRAKF1615189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3359e7d73feb1c900413af9dfe5588c4adda3476c8ab915f03f77638b4dfe44. Chain 2 (Bitcoin): anchored in block 960183 (2026-07-30T01:10:20Z), 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/TRAKF1615190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a3250d7d10572b7dc0034a0f54922ace53051eefb040178e729ca3aa80b19fa. 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/TRAKF1615192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2534699017a443db351471ebefc89590ea34aec5af7f2f3ef930cef65d3dd077. Chain 2 (Bitcoin): anchored in block 960314 (2026-07-30T21:00:46Z), 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/TRAKF1615193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x598ed05620cbf15c5d367b835ad57a699dc17bbbd906652eb4a3f04f302fff7d. 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/TRAKF1615194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa40327384320cd6f9bb15b4a71778d4198f980ba8a4d769ecb4ab6cf6f1310e. 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/TRAKF1615197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9323099f24a96664f146a829dd03a52a91a539c403174f2ab0c889ad652de2cd. 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/TRAKF1615198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x554737c26b431493e0064a74e47211cea8fdf09f2666ad822c7c1cb1e1d994a5. 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/TRAKF1615199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc774c29cd9e305dd450c74a3747ecbee6bfbf5ac0ee9a53b52c757bf47e116c4. Chain 2 (Bitcoin): anchored in block 957034 (2026-07-07T11:52:37Z), 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/TRAKF1615200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c041336690e51ac28f7524e96572c1ad5311ef71f260692d843426d5221a3cf. 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/TRAKF1615201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43ca8710d7086f813b81e42a894196255ae97ce76bd298af128eb735172dd9c5. 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/TRAKF1615202.
Baht Oyunu Keman Vers. - Original Soundtrack
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc0b8f3f5860b29c73c230febd0b881bc79b379c3415a9b489d4c42ae1f279b2. Chain 2 (Bitcoin): anchored in block 960145 (2026-07-29T21:13:37Z), 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/TRAKF1615203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf61a6cb3a57f6b2da5790f0aacc29921e2f9ecebbe0a0eba4cdb0327d1c9711a. 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/TRAKF1615204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06320824c8f7d88479ba98844bea1bf612cdce8f82336c35106b2e0c94c0c51b. 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/TRUM72300102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1519e0ca0a266165882c6c67cc439ac2d6ea5b26d21da721f23af2d0e95c031. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/TR0391400117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x679f82ac5a79673e47a42afe54bc015f88fe134fd33c5506010e88320cb5ef9a. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/TR0391400122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32463d275c81e3cf31ecc0d331f8813263edf99f9e6a825e85f6689a75ca20de. 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/TR0391200312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1519e0ca0a266165882c6c67cc439ac2d6ea5b26d21da721f23af2d0e95c031. 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/TR0391400117.