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 0xe225de0c84c2c8a0858c7587be64d49c35e5488e5e6c9c7856c6630accbcbc42. 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/0e8763d1-d924-4783-872c-6445ad70cb64.json and https://artists.proofprofile.net/proofs/artist/0e8763d1-d924-4783-872c-6445ad70cb64.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ride Bae (Flow Key VIP Mix) [Extended Version]
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 0x666fefac608c901f22838cb536f0478c7891b99cfb3c6f849ea668664f8a5fb2. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/USCGJ1839215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71736a3315903606add7a3fcc9143d736730da0b6938eeaa1e7e337340b3228e. 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/QZDA41926876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f41479d0c939e7f953a5050f13ac393003ded94bc211faedbb08a54f4b92bd9. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/QZHNB1936683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86acc367353774ea593c6f69e67c0dfc77c062c1a81f4ce0bcec2a38847bb052. 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/BCAAS2000006.
Rave Outro Nível (Astronomia) [feat. Mc Daniels & Mc Rf3]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76c2730a7e3b8bab88e49754ad5e1488778a9701e90b02f6e6de0356bf87dfac. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/QZES62051449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58f93fdc0e32bab619ecd18713e325171641ed87c7cf6ed544fcb1951e8c92b1. Chain 2 (Bitcoin): anchored in block 958498 (2026-07-18T04:54:58Z), 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/QZK6L2117736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bd2532dcc52080017e3f94820fc5f1d55b52af7c2f803748e49478cc914cca5. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/BCM0E2000001.
Bota Em Você Machuca (feat. Flow Key, Bernax e DJ RD)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67ec820ecffd3e53dda99ba3951786aca5eab5589fe97a0bfc2c4e0620a30054. 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/BC3PG2200224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3427477b656dd84b4a6569db327aad2f7e73258281afa3441fa79e9b833c9615. 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/BC3PG2200223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3374e6de62cf30178c695560019fd804057fe560face8151c4cf76f3221aa85a. 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/BC3PG2200016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x518182408c37c514ec49d2617e005d4e84eae58cca0a07e006d5171ed3975537. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/BC3PG2200226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x009140f5d0654747f6a24a2ba85059434f3496beba9679537f6249ee59eac20a. 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/BC3PG2200035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90450e97771cf030e22ca2b483c16e45c82461d7264724f7d0ecc568519f8ef9. 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/BC3PG2200225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67ec820ecffd3e53dda99ba3951786aca5eab5589fe97a0bfc2c4e0620a30054. 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/BC3PG2200224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90450e97771cf030e22ca2b483c16e45c82461d7264724f7d0ecc568519f8ef9. 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/BC3PG2200225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x009140f5d0654747f6a24a2ba85059434f3496beba9679537f6249ee59eac20a. 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/BC3PG2200035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x518182408c37c514ec49d2617e005d4e84eae58cca0a07e006d5171ed3975537. 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/BC3PG2200226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3427477b656dd84b4a6569db327aad2f7e73258281afa3441fa79e9b833c9615. 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/BC3PG2200223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3374e6de62cf30178c695560019fd804057fe560face8151c4cf76f3221aa85a. 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/BC3PG2200016.