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 0x4f634d8d7f79502bebfce7558b16c51046a1da78e4896199c53d78cade716124. 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/00beb7cc-62db-4f21-b0a7-7d49d42bed3a.json and https://artists.proofprofile.net/proofs/artist/00beb7cc-62db-4f21-b0a7-7d49d42bed3a.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 0xf755135ae06990e580af66ad433d0daafbd99c5e05901aa10182a2f9179e58d2. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/BRCMP0000274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0211b69d9ffbffa8cd61092d06de2b9818ef68f6aee7e0fa5c9ad2f1dcf2403e. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/BRCMP0000277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8041823e0fcb39ef8ff1c0b1bf07f59b50ab7a26abf020bca04da9c73bfd7200. Chain 2 (Bitcoin): anchored in block 958197 (2026-07-15T20:40:29Z), 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/BRCMP0000278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf753a169217e315736d72619993c730deb29f9884f18abb75d4ce851632a0007. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/BRCMP0000281.
Misericórdia Infinita (Playback Com Coro)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58db8f20af2280bd08375be3bc5e34429223e2a996eda60427fd73b618a1decc. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/BRCMP0200433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c069a8797642f485f8a501a3184e6ebda01dd2c718904a0ea70cb63c61b0362. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/BRCMP0200439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6978d863af3e203e0ec2d9d1dff2ca0b05f969d8b37dedcc8bc26274b1b70d5. 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/BRCMP0200443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29dc10f2093c5d4a1fbcdb44272ab805272a4b4a8092ed91bc59a4aeeaf977f2. 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/BRCMP0400620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4afedc7e4274cb93a4ce165fef788719a8db741cd743ff9ff6a49d88c8cd90d0. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/BRCMP0400621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65d710d7753d8fc244768e6b256a6f9997b7fd69c5856bc1f8f4b025cace915c. Chain 2 (Bitcoin): anchored in block 957965 (2026-07-14T07:07:52Z), 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/BRCMP0400623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e4d536b6529c042a0b7f5f64e34f0384f1d86f8cecf49d0d06ff6c54776ed94. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T04:30:31Z), 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/BRCMP0400624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x395f5a284d3175f0fa34e78d4261ff7eee38ec864e5ebfbac5b2da9007dcb11c. 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/BRCMP0400625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa46156f2564f5718a3d82477e32fc62423eb013c2a9cbb7a12e65308179a636f. 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/BRCMP0400627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7f6dcc1003dacdbf3a1f38d4dae9ba21e061cbbf15391de739508f3928042f5. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/BRCMP0400629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x751f1faa3897d71157c27e7233f5fe7b667a06dc674d8249484ed7095fba2c16. Chain 2 (Bitcoin): anchored in block 957965 (2026-07-14T07:07:52Z), 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/BRCMP0400630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3b8b1324e4a8700fd14f7449e80745b47781006853e77b7ffd9ef5f82e6bcb8. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/BRCMP0200253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb84dc9fe1cf5bcb8214c9a490f9ca4044bcd570c642dd2d4cffeb6c3fade0de0. 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/BRCMP0200254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb125f8b20ea6d41d86676970b2094165f0b3dc39854935497ba99973e8600b88. Chain 2 (Bitcoin): anchored in block 958903 (2026-07-20T15:22:45Z), 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/BRCMP0200257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x505e883ecc59677b840e80f50ed4be57c482dd92455844e69b9d52d1e2d6a82f. Chain 2 (Bitcoin): anchored in block 959088 (2026-07-22T02:14:33Z), 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/BRCMP0000282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeef57d08d453bb82d20704e568f263a5fa14ee0597223cc0c8a6b8c1d03f26e8. 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/BRCMP0200438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba5c89b2f0c000d788e3407565bc149f17a30c887f6796c8f04baedfd7846c9e. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/BRMZA1200236.
Jornada Mundial da Juventude Rio 2013 - O Melhor da Música Católica
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba5c89b2f0c000d788e3407565bc149f17a30c887f6796c8f04baedfd7846c9e. 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/BRMZA1200236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc258c0243c10ea72a2c0773a3a486a73ca594ed6ad65216a69e9f7affdd1de19. 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/BRCMP1200033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x598525a6f25183c3a35743d54d4fceb13968f293e73dab6059fd22af79030f04. 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/USDY41651005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb83d6f42b696636d55773b2a20dcec230b5b49dc0078e0f45d8c63ca93b02146. 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/BRFU71900008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26c0544514102f21903fb89da2c30cb3d4367216d334915329525651088059ee. 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/BRSME1300595.
A Esperança Entre Nós (feat. Lucimare, Eros Biondini, Salete, Adriana Arydes, Celina Borges, Ziza Fernandes & Walmir Alencar)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8f54f98997f634eadb13d61845e1dc2fe1741daa4f41f3eb31d5ba41370b37f. 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/BRSME1300604.
Brasil, Música e Devoção (feat. Lucimare, Eros Biondini, Salete, Adriana Arydes, Celina Borges, Ziza Fernandes, Walmir Alencar & Eugênio Jorge)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cad492acc0aaf5ed4f843ec8058e2b36bf786234957b89730747e3a99344221. 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/BRSME1300605.