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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cd93396119a413ddb9566839309ef2d8c47455a4f67911d154d3e05fd4e3f50. 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/c8e2d26f-6b09-4eb6-b09a-0ab7ba9a8784.json and https://artists.proofprofile.net/proofs/artist/c8e2d26f-6b09-4eb6-b09a-0ab7ba9a8784.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Mesmo Coração - The Holydrug Couple Remix
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5315b1bc3a3df95bdbc40f92c9629368347f5dd0a8310227ad50d3c1930300f7. 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/QZGLM2159350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42e1c472dbc610811ecdb30f52b33822d364647d14453f354076b67017c1d128. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZHZ42144415.
La Tentación del Fracaso (Películas Geniales Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f2d889c3959ddf674e2b076af600d2d5c50fcdcd2a02a06dfeba1f46821dc3b. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/QZNJV2035210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5571d9c89371105a124a2d3a62b10291dce9ae74ded66641b9e1559828420973. 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/QZHZ62041135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42e1c472dbc610811ecdb30f52b33822d364647d14453f354076b67017c1d128. 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/QZHZ42144415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd984bae978ece121cc73601ba4c496ab6c40e25e8e180f180df758dd5965daa0. 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/QMFMF2145446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc731688bf9438c8a052fd9168401140e7efa7704db2051cd716dbf1995779d93. 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/QM4TW2239116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e8188a89ad8eca4f40b954577f15d1b1820289aabff17b622f4a9d8cbf57736. 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/QM4TW2239126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68faf9f1438802f536ad36b856a056e82ed310c543deb06f6de23e5a68ecf2e2. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/QM4TW2239115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedf0849e401d86d6544363c1b1840d7114f16ffaa05fe5c3dac25dc98fdba89b. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QM7282368245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x950d144f3219d0dedf6d07525c13fb16665148154be30428bc3000e0fe1dadcc. 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/QM6MZ2443427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb33ba8a57d538f513fa1fd63bd3988be966259c57c0025b304d4734056186dda. Chain 2 (Bitcoin): anchored in block 957776 (2026-07-13T00:05:10Z), 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/QM7282530564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5e74fd8be37daf990ac64c2dbc2d7fcc59eb7ba94e7f7a72a7c2e8b16e18647. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T08:14:15Z), 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/QM4TW2582413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2475fa28b953b440feeb99919a7143f5f1e6cef5bb716b7067aa37a3406475a. Chain 2 (Bitcoin): anchored in block 958870 (2026-07-20T14:07:48Z), 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/QMDA72483263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58b4cbffdfb8a13fec303939fea0cd3be7b44a82fa4801e496375a36675b24b5. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QM7282530632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdba32c8f66af9961949ff609e9d729b7028f49b936ed400d2564d34ccddec17. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QM6P42528852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9959d25ab583bcd0d47093539ba2ad7bb8b77e78233de27ca1ba035caab4045f. Chain 2 (Bitcoin): anchored in block 958860 (2026-07-20T09:58:28Z), 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/QM7282530631.