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 0x537add485d9ed60b18264ebfa8135982fdb4ce5f55cb73bc74ed54d7595b5dd1. Chain 2 (Bitcoin): anchored in block 953999 (2026-06-16T20:20:58Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/31e41d77-f098-4a46-92b1-ee8b503aea89.json and https://artists.proofprofile.net/proofs/artist/31e41d77-f098-4a46-92b1-ee8b503aea89.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Memórias do Samba: Samba de Raíz, Vol. 1 (Ao Vivo)
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 0x94b537d75eaac8aa2ec32f9990d58d193a8cbc1b614d034ce56ec6c6a9202f7c. 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/BR0JX1800005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa49dd7423b5ab00a602751b06f19c9d0b9a10f1f7cd9650aa92b978a5ade6dd. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/BCUMP2100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28fb020d9a01662a3ff13b0aab2cb426af5ade3fb09ab3b59cadfafd4ad8984a. 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/BCUMP2000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a8d12f4803aaab6ded506c2f17f8a697d57b5c8aeea9d4868f6d302ea487cee. 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/BCUMP2000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54bcfabfbde4d3ce43eded28d34995b092012e050b5e29e2bc7dc0db83d60236. 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/BCUMP2000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa32033e696add3b4375e0c5eda5a84139c3fcd1a6e98e0eb8acc4dbf5a21faf9. 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/BCUMP2000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b4dfe3830fe3f4aa68428b81141076fdf60c492b75a5aedc9e8a4acc2ba6a5d. 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/BCUMP2100008.
Renato da Rocinha 10 Anos (ao Vivo) - Deluxe
Moleque Bom / Moro Lá / Roçado - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf384f52dac40b48c95131e52ce94a32faa403dca031c57c1c30161de834e9df7. 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/BRD1E1900071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4344921e0627403693e8e9a7ad3cea6750e1b3f24b66ec8e0573a97d01f978ea. 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/BRD1E1900072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71349edc01da30aadfbc45c64df3a8cc23bb72d518b8702bac5345dfb1a80179. 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/BRD1E1900073.
Quero Ouvir um Bom Samba - Ao Vivo | Bônus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4a6f3256654af2ca86cfdce4d3224550c57db45223d91c5ca71c688cf7a1ce9. 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/BRD1E1900074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x144a2c06adae6cfed05cddf9e78a94dca980b90ffc332125e278a6ad6fb254d3. 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/BRD1E1900075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d38e4cf8860f07c4942f7abde642c2bd307ca0548faa60f70a7b238ed035a5a. 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/BRD1E1900076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc708fa3ed44bd86e0aa720cd9b5c428e7a6b1bb02cad190880a847d8fd89e70f. 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/BRD1E1900077.
Meandros da Ladeira / Existe um Lugar - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bd68a4aa6320ad5c6eea3e4766737163b710f40778a285cd575813a4e51bd34. 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/BRD1E1900078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d5e514496fa81bfd34237bd24c20203aae6841479e28d3fb5b2fe81737c6513. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/BRD1E1900079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbb50127d28f55577d1cc708611c96eb161ebd286dccb8d612b16d0b1d660a8e. 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/BRD1E1900080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd660dc78539e48197d380786178b0dec8c65210f579aa377ff2db3710d3e8e4e. 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/BRD1E1900081.
Moço da Balinha / Feito Aventureiro - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2bafff0523504cb75c62ac76367f169408ec953ddf85e7458c1d1f3fef2fa2d. 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/BRD1E1900082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf76f920323378857f65898628f057486d94a0a5e6aa0551650c6b5a22f4cda24. 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/BRD1E1900083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x716f5d766327f074c402bcb73389e27bd57e4ec83cbace87c285f628159995de. 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/BRD1E1900085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x718180daa6af32f247be5b81e005f369e03fe38fbbedf3f6a229e77a101b027b. 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/BRD1E1900084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb399870bbf85397a00e351fee1eeb9731fb6d85e10a98b609976a5fb9fab9dd. 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/BRD1E1900086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55ae74f7bbbe65617ad8f6a9889d678fd872ae012fb393c101782d0afb6938f2. 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/BRD1E1900087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a415171d5d431f2a6b1c0279e4f425bfb6cf7943cb992d62e2b9d4111ab4de9. 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/BRD1E1900088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e4bce6d387bdcf0f1a87dc66b57270307a9d31284f871fc34a25b7f637a940e. 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/BRD1E1900089.
Yvison Pessoa Apresenta a Batucada do Instituto