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 0x7431ababc7d40c2f48c8b520e65216687ec6afe6fc32fdd8af3639180440ce36. 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/1a450342-c0f2-4a39-aed5-11c65f2c45dc.json and https://artists.proofprofile.net/proofs/artist/1a450342-c0f2-4a39-aed5-11c65f2c45dc.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 0x804ca5b0e34fdb329e9bfd287001bd33222a5d363255e1e549b37a16efb1bed0. 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/USHM21532068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb11860db34bd71050b8693abc0b57a458ad64ae2bfb118b9bd8e9591843eaa5. 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/USHM21532069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed11b3941bcc02f86821aab1036dad336877d154161fd9c454bc4dfa3b9ded17. 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/USHM21532070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a613bc3d46cf904e22f328c7aa77672972ca3ef1a7e582b924a7800656cb5d1. 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/USHM21532071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6e8e93c566bc626ed41b9026820f49ad41012403e7df22358d24ba0a856f406. 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/QMEXY1400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd09ef79425498561f8a65a121e75b3dd97af2d408012a7cdf5064f959f84db49. 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/QMEXY1400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe03a00fb0988159521c68d8215b97d5245ce9876c51e3a4b3f3e68bf8543f668. 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/QMEXY1300040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cb206c0870030c5ff8beb8fc237d2ff41b6496243a6708ecf56cce68f4832b5. 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/QMEXY1400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x835b59244ebf4cea0a8677ea53c0a6b02fbb8922dddfc6203571d10502fc70f5. 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/QMEXY1300022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6dd0a424288369856ba8fe8698e9a37dd0355fec3023ef101d1aa3ab6a4cb7a. 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/QMEXY1400013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6bebad9389dce0f7644eff02a2a08d84d59da91c52c758c6559781cf442300d. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USHM21345428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb92e48e8a85ebcf86bb0f62e6c3d378f0324aa1ef4e4fbe9cef3615767429df. 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/USHM21345430.
2Ble Puty (Feat. Franco el Gorila, Alexis, Guelo Star, Gotay, Antony Yetzon & Lui-G 21+)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ddb0ee3981323abc8509c1289c95d20ce133515d01079d63cf4a986078ae7db. 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/USHM21345431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84c59814a23b6a1df07fd90d00d6c040563f3f5485c804c31d7424ece1d5a4af. 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/USHM21345434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98e51382f7950b7ae2484674c085282b0a01e2296a6069b7dccec0bdda92e4b9. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USHM21345438.
Tu Juguetito (Remix) [Feat. Zion & Lennox, Arcangel & Lui-G 21+]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd33495334c60a0e2cba658859881707ef0d30e831d9edf8824b89c83cee7c37. 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/USHM21345440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5da7577193af14017a8abead4ff1a0da40d901549a6705ed04936145d9e1f0c5. 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/QMUCK1250249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab44d8e01f8e3180f8cd5de8250896acd01aa14619e356ddaf7fe431343048fa. 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/QMUCK1250250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b30fdd9e80f11ccffbc01a0e349140eec659f54e97e5cd521687ce33cf8deeb. 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/QMUCK1250251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54ef0ee751116059b7ef919cfa900ef3984d0e8a3721ddf6e84876ee177f6abc. 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/QMUCK1250257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0c6f290845f315e877b6af937d1f58f6d4f5737e1e36a125a9c53929bc6634c. 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/QZGLM2561950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb6a20ad44b122ebda16ba6f2c57fc2a04d1a0dfd62b32079497b189ee3a28b5. 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/QMEXY1900052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebc5c22aaf4466299007029f902dc74a739a36be36e7d1ea34c1b8bb7fefca44. 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/USHM21852962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x771658f2fb7fed7cfee7dcb648a8417bd1ab1d2f7a1365bbbdf56b102abec3d6. 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/QMEXY1600003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9c8eb02a16f6468380a32cb6e886474dfdadac1aa753d7f5ae505dd3df71c8a. 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/USHM21497625.