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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb70d2a0178649bf26fb5643c76598746d45b3244b6e2d717939c32447ae366c5. 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/b896f120-d00e-4a41-9967-058d7e06e97e.json and https://artists.proofprofile.net/proofs/artist/b896f120-d00e-4a41-9967-058d7e06e97e.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91b0b93d3de6e3366e44145f37196a1a46670ebfd049b8f6489afb3e45c645a8. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/BX03S1800016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd958796623e1d2e89f01488614b3bdf181bc1e9bab7ad6403e4fa2b1655ca486. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/BXZPU1900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92d252e6e4a24358d0905d58185c4c8811e3ae8f37ca035032df18d659a35ff2. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-16T00:35:14Z), 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/BXZ9U1800004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x262ff705cc2c02713d6d1f410fffd66afb825820c8d9d6e6e0e536e590de75ae. 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/BXZ9U1900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d0fc13539e1dcac0fd5c9a88e27ac860e1735cfde3b331296841c4932d30a4e. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/BXZ9U1900003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20254e37b331664fd94e7ee728bc354e5c8c7eeb1f02672b3b2d81004a01223a. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/BXZ9U1900005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5f9689460f3120de420a2e6ceb63871ee257c65ee3b785c36d4be7e0731f157. 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/BXZ9U2000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7501eaf630e5bac2486869cccdaed780b8a861c8392f438119547e6477a88cee. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/BRAPD2000051.
Outro Na Fornalha (Another In The Fire) [Ao Vivo]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36d2023df20205956dcfe90a4d2f5f0c5d2b2490a02e9df102b5fd30b0cede51. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/BRAPD2000050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7501eaf630e5bac2486869cccdaed780b8a861c8392f438119547e6477a88cee. 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/BRAPD2000051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfd315f51c3c5981a80dc23f46167486f1b94e96f2efaa7fe454f92ae0479130. 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/BRAPD2000053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c374f5b743368051c560c2b89cddf816d1ce5514e08a9851004eb29b1095878. 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/BRAPD2000055.
Jesus Cristo Basta (Jesucristo Basta) [Ao Vivo]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2663e5b6979dfdf3492a25771d1042375f763147c4f64ae861f0bb4eee7a224e. 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/BRAPD2300019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x092f9993789f82c77a4362913bdacedfc3b3e723492d001fcfa854f60ed0978e. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/BXZ9U2500030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc25cf136e1359a5b70e1a71548b808128e3dec2eda980c869bcd348abc3e377d. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T17:27:31Z), 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/BXZ9U2500017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bff0286f29a52c3fabd6ff15d68cebe087aa475f68ee4055a03c4847841b010. 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/BXZ9U2500005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15c3e20fd76f53c49f74d2119082449236f07c3826625c512090f47e09190586. 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/BXZ9U2500045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfd315f51c3c5981a80dc23f46167486f1b94e96f2efaa7fe454f92ae0479130. 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/BRAPD2000053.