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 0xa32262c87bd71e0232a8050cfccb3ff644a527bd2b7e7f1c357aba1ff7b09350. 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/d85804fb-7506-4177-8311-1e07181c352f.json and https://artists.proofprofile.net/proofs/artist/d85804fb-7506-4177-8311-1e07181c352f.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 0xfa2b105c8cc9792ef876385f7d9a67973f3d21b795b1a2d37f23b0d5089e4c57. Chain 2 (Bitcoin): anchored in block 960268 (2026-07-30T14:53:07Z), 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/GBLPF6679259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2642865ffbefc398a76331f2bebb00dc35f585ead47784678e4d88bffe9f7678. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/BXHCO2400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b978e299aeb4e6895b8f5e4971e2bdd7163391747a10bec5ce25eeaafb44fd1. 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/CH3132400355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7a5e074826f60becbe7c76e6a1e9a5f1a66fcf575575d595f446fae8d8cb915. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/BXHCO2400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x034797f6f3564292e25e870211d1cc57fe3c6bc588c1447d9134af36eceb91cb. 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/QMANG2252710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68803f0bf64e27804a471a0c8aae22a213dab15134f3a46ddc7ef2e4191a34eb. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/DEH742311044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9db713eb20be7be2781d9687d71dd8beeed1df32b51ec52406b4e9f32cf61879. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/USANG2275418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3598273ea4c84c107fd08694e141ae042ec4e6792cd096e597611fb943e482b0. 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/USANG2275274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10ba1a49428afaf302c533fb402dc8fd2232c4b36b2c9954527afe087a4f3c94. 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/BKAVO2200020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bc4ae534179d664ddf40da907c51417ef3c850880f82a1b30c2136d6bf0bf8c. 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/BKAVO2200015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d91515010b54e89ef38616c5b3e7be3fb514641ac0465f93b3ee95a444e1c83. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/BKAVO2200011.
Todo Mundo Vai Sofrer (Franccz & Kof Remix)
Todo Mundo Vai Sofrer - Franccz & Kof Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x235fb3decd9cab4e082faa8ff2bb8304e8aa27783509ae7c746a3c3c5073f049. 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/DEH742229211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd68b7fe7c75823fefb1c192adcf1c88255a3638b75e64ca78078f75519dc0d91. 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/BKAVO2200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9e0cc0e12166a34282875ae1ca0b4af23ada9148068971bc0e6a8d6020c4119. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/BXHCO2200010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59ef5e428ee56564a56ae9aa2c38f2a89468b92dad24c7c3daa14d581ebbe1ea. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/BXHCO2200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x306d9ccdd91a702d2174dc5223b946176a89c7abd2e134192476b696c0b7d233. 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/BRQIZ2005023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d1acf8d7e5d63cab62bec7398da14dcd07f7326796e26e63ec327a876cd7475. 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/BCNDT2300007.