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 0x76c51d18c31fb55ef3a486142250c78eb394947bd8ea2e1cfd238cbe6a231865. 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/dada023f-cc12-463b-82f5-4cac254485d7.json and https://artists.proofprofile.net/proofs/artist/dada023f-cc12-463b-82f5-4cac254485d7.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 0xf3e32e68780e088bfcbe9235e8feaa684c7125a114f76c0d718b4f39a3751ed1. 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/RUA1D2352457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74d3175bc68d2891893f9da02a8d0c740ac596877d068d4fe081bc71387bfa4f. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/RUA1D2352458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb786ace107c046ee6e8f0803917967dc357cf755d813257f095db469ec8df3d. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/RUAGT2347726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcadb2c6ac50e7dce0062846e08f6104684cd75dfa670f9af42015bed3d116c6c. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/RUA1D2439857.
Cristiano Ronaldo Slide Sonoridade Melódica
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7d43fb648d7b4fde33fb68f74146879630f28493c7add9973458474b4fa4f2a. 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/RUA1D2462557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdb24fcf85f5ed64dc938cf2fe446529ea61bf2e7438d769b39dc070a9bdc1bd. Chain 2 (Bitcoin): anchored in block 958329 (2026-07-16T21:48:38Z), 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/RUA1D2492469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c2050cf09dc7ca80aa2617a6ac0c2cacf7d26d56bc975a5ca32826d71de6f7b. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/RUA1D2494572.
MONTAGEM VOZES PROFUNDAS (Hardstyle Remix v2)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cc1ad62678671936a15af24b0dffb070fc610798fd35e8a302c541d9339f55c. 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/RUAGT2414303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a1b397734908ec4df0337600ce55827a0022b36f35ae8876bc0bfc1ac2c5ace. Chain 2 (Bitcoin): anchored in block 959054 (2026-07-21T20:19:31Z), 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/RUAGT2418309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x470fe56b1afefa89a8c4b58c684e02308edc7173e53e96b31a6c69bf83053000. 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/RUA1D2441907.
Se Paciente Funk (Fun Made, Ultra Slowed)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbd8f458ac799ad3b50a03ee1e071f813c92ff7d0006ebbb3b1b6ec106e87393. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/RUAGT2424825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59cc5237a581944c0b3f4a4fbb9c2e5f8d9af45c00482bb047a87716f963e23a. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/RUAGT2424826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cce806b6320c89d2198a8c68f7bfdf703f30a8a0bd7cdc5754fa22c0eae572a. 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/RUA1D2451406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7f8b73567296e4df0d5eb5c483154c2feef0519e1c0f9279aa57a78215ab838. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/RUAGT2455679.
SEQUÊNCIA DO RELAXANTE 3.0 (Super Slowed)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56da942726ad8322b7c0600b28a119b7f45709f76dfe7fd228f2408040b9c1eb. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/RUAGT2455681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d248b7cc8c35bb1ece64708cbe5924d8a9368b132651edc1729b24d9e636653. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/RUA1D2524090.
TRALALERO TRALALA FUNK (Super Slowed & Reverb)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb23de89ecc070e5f314143fc79282064df7a32e95b44fc2745960907c8c1c3d. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T15:07:00Z), 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/RUA1D2524092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9ac64fd96b4eb07838d3e4b3a36e01026b987c207a54931e13bcacec280af72. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/RUA1D2515182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x362b33e6219dc40bf2739177468addbf88e9fb442ed128b6b405e68145cef243. Chain 2 (Bitcoin): anchored in block 958863 (2026-07-20T10:27:46Z), 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/RUA1D2596648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f1ff3a70cf6078c3bad375d840bee39150eca23248efd70ae84b43b700870ff. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T06:33:30Z), 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/RUAGT2593219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb1ed639d87eefcd3f0a7850cecc05be374299802fe9697f480913d7bc8ae1c4. 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/RUAGT2593220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7a5416191ca677030470f1f16a33464ef332bd7aaee6ab1dbb55da28184d21c. 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/RUAGW2509280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cb76996da9f3d7c38e8b085f68488e7e92386b14cc69f38f72b06c835de7d23. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T15:07:00Z), 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/RUAGW2509282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x957b0ef98254e4da3da39944a99d9fe815fd1fe754d07b1752a54627a4d3d0e3. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/RUA1D2501354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdac492faf4f1787dfe0f198c1039a683f78377ebea69fb3be2ef2ba9b723f94b. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/RUA1D2501355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1bfc96b700e9ece9afdf5f3b998a4da027d68df231d61f6d4c2c152846f94f0. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/RUAH62427236.