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 0x4a493067f53bd67a8886ea230af50f3a6b739194d98fe136cf31914ed01184fd. Chain 2 (Bitcoin): anchored in block 953724 (2026-06-15T01:43:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8de74947-c915-4cd7-9a59-1549f1477685.json and https://artists.proofprofile.net/proofs/artist/8de74947-c915-4cd7-9a59-1549f1477685.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 0x28d5f72c7edc2baa856c3bf4315b3c191220dd74647ba024f55e0130768ec0cb. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T12:03:04Z), 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/SGB502283212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5faf4e5d132d70b09388c58e95725aec614fcef77a040d8f17c74f6b4943b5be. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/SGB502291730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d6dc3ff6066f341b8ba5b546cf82a9b8792e10fb27da12b809ea59cef5001ba. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/SGB502291726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2608caff53c9666f74e745569bce9728b989d1d71b9eecdfcd9b9bacea3b7d1. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/SGB502291737.
Sad Song (Sera Que Agente Nunca Vai Ser Melhor) [Remastered 2023]
Sad Song (Sera Que Agente Nunca Vai Ser Melhor) - Remastered 2023
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e1d4c40f48f01255aea7e36a9d3ccc1de8b53799ea4d26bdad78c472ccd56cf. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T02:31:22Z), 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/SGB502372268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f46c878fba16e1ff935a3f4e75a46df6fad2dd5c4cdd91817bf47add5528850. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/SGB502374337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda496132e0c22c5f589ee70920a33eab1e989a38721d81dcdfc5569c75381957. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T20:44:14Z), 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/SGB502374341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x780651fafa8fffe3a474a25ddec9726cf8890f57875ab12f7bd25e5b3cdc7388. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/GXD7G2511348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x355ddabce486bccb8204b77ac9aeaf295f8217ad5407fe8687550fc9cd024163. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T06:27:23Z), 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/SGW502564569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedc58cdec65ddf88ec75a620f606cc32c795e484c8c4d72bd6500656089f2d72. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/SGW502539791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcfc7f492dacc4ac2709df9c0ae7634a835f908853ebc8e2b2847b854680a709. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/SGW502549620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc46347c18f08e633e7f4ca802a9f3c5dc6cc726e9a4ea8d0c54903637edef43b. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/SGW502552797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52ee93c83057dc6954d6106cae35cda817445fc5c95b831a36121e4f4a004afb. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/SGW502527129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e58f0d9da173f4f71bc313da5555731d74d09392b121e135bfcd284cca3e2db. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/SGW502596954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbdca893f06fc6b490f53a31a93fb4c7518a79917ff776758d8037dab99d26ce. 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/SGW502565986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fcd68f4bc2b06fc1f0f30c6d44524950dfda4051688910a22c895391b484835. 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/SGW502540351.