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 0xa0042c6d47d11f53684490cd10844b87411f86580f5c155048b338e318d9a645. 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/49810a72-e121-4f22-8337-39721cf4d295.json and https://artists.proofprofile.net/proofs/artist/49810a72-e121-4f22-8337-39721cf4d295.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 0x1e228b41afcce919c787b78dd83870de08f384115e19383874e516998e8b210f. 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/QZGLM2522937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x852799599ee54b94028e56af187020c14a6a8bf93a71fa073ad1a01de16a423d. 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/BKNU22500012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafbac582240a62081a35ca47873c97f60c10eec930237d983d93463bb68c41ea. Chain 2 (Bitcoin): anchored in block 960170 (2026-07-29T23:52:38Z), 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/BXYZ92400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe17cfcf5e8d64afe068768955ace723c35af5dc996d2171a3fe4dd63e49e64ef. 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/BK2NP2400239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63a76fe5bc29fdcfc5f279bd0193b5b5895d5dcb928a2860f25576a6de2f96fa. 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/ESA112451326.
Senta na Pica e Prende Vs Vou Pular Novinho em Cima da Sua Piroca
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cddc5496703e4cf3e7d1814bc988681f06c1a84d077408cc406dbe83ec5feac. 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/ESA112448961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4281609821c14b8e36fb14b136eafd76b31122f0bb33915476806cec31e78994. 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/AEA3A2315860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb34ef46e3366da3a8d31cada9c88e684d43e32f6d7ae3b436b1b6f283a4ffc4d. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/GXD7V2493822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x544517cec0a4e3b88a1514eeec1826101a3c6b1d36c9990db966e12900e20898. 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/SGB502488106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb388bbad326cbfce898c56d5a6e7511d2b7adda4f9bfc617a2fddcf91e8d442e. 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/BCIH82307809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07d4f0d34d93658acc8f28dd948064607d218109c7c68e84d3af816f0a91df40. 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/BC1U32200918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4317546aba10f68645f7e55126b9853dbe7b366ffc28ef72055eed8518e07b9. 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/BCUXI2300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd55a1fa2d787a520ca5289f9fd6682ca11bde9ab87e7828bed525d0f7f73f40f. 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/BRT301600047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fd1887cbb7404aa120d625ca2a82b1184c89cede4d79ccecabb2a06f10c2ae3. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/QZ5AB1609792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x716ab326d7140185b2a99c20dbcc315b9121485273cc2c609700bd4c231f435e. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/QZ5AB1609799.
Baile do Dennis (Ao Vivo) [Deluxe Edition]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc6e43bc43d2a89ac2aaa1d697bc138b6c9527375e447e8b510366ce33520441. 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/BRT3O1500039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x657082cde73532bc51af290ec13cc6e74f8f0a822e4a6ab9f912c74bcb6a509a. 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/BRT3O1600003.
Pra Gente Dançar / Vai Sentando Forte (feat. MC Britney, Tarapi & MC RD) - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd69b0b4f0bdcb5fc38440361816de97bfd29ce73139aa0bda04a1df5bac52f67. 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/BRT3O1500063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe115ee36315287a4f6babc69d85abbccbc4b4dfaa963b0a3c84a6ad63c48a394. 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/BCVHO2400012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cf26058581fa893e69560bd4494aeff138fc49ef1492961c4e4855d7578f5e1. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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/BXNJ32500004.