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 0xfffaa17b33df8ae6a3d61fa2b3d60348672b149c08c7085c9168b4b13c18756b. Chain 2 (Bitcoin): anchored in block 953741 (2026-06-15T04:44:49Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9ccbf315-a6da-4187-b46d-d231d2f033f8.json and https://artists.proofprofile.net/proofs/artist/9ccbf315-a6da-4187-b46d-d231d2f033f8.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 0xc2f8f15dedeccad5925feca999f69b2da596f03f83995f62dd443c2746d5302c. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T09:04:56Z), 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/BRCPU0500069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x976871c74a454e21838c64a6bd5b996af59f0422a875c3e175e8ea4fbbb60e57. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/BRCPU0500065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf83721f504270871b1785abe0eec5dd6ab2a1f56f98d539be600c9c1c79a3f59. 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/BRCPU0500104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d9d68f0d576a7c874be044a8114dec9cf42acdf4e144efed2a74e921657dd1c. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/BRCPU0500107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc62525bad242a4a9b98bd515d791494b282ab2493ddbbec4151ef35ffb79b357. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/BRCPU0500103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33796464ba7bd15ff83d57fefc2d3275efc2ce720f69b7dbcb13ef134d79b214. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-20T00:27:17Z), 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/BRCPU0500101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x935523727f948a9463cef6e34fc987d0f2b8f810a9fa88968ce74df2633d890e. 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/BRCPU0700017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e0a81512ab442d3f925331bf1dfcac97fff4b309ec2ccab88924cb66baba272. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:03:58Z), 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/BRCPU0600009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6c51feb3b19c6aee68a98c52511e324ff7c2743b54d3adaa88861d5c2a1f664. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/BRCPU0600010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa56329dde26da63c67dfb66453d9e158480e44640be493affd24d9e435ee90c8. 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/BRCPU0500119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97e6ee2cbeb2792b1f4a96ac88a93d132afd390d18a26520fb5ac3ec6026020e. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/BRCPU0600001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf20e67d721c28370e76a1f79a1cad9dbf9112427adc8dae2c69eb7e1e43114a4. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:09:27Z), 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/BRCPU0600002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d639012d82c026c2b24a743889800c90cca5ede807af236fb49a8f654202784. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/BRCPU0600004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82ae7aca1d464091e5ce67d5a0f9c8961dbc7a45d8d4ab548d65336f2831a022. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/BRCPU0600042.
Salvo Estás? Limpo Estás? (Instrumental)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x035c82bf261ac892b7eca0d8ded23f68753ed4611e5d2fc4a557fbdc2b729fbc. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/BRCPU0600026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80cd95b019bff6a529f9ae0aee2039ff0d300d25fc4d540383470b5b44ef80e9. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/BRCPU0600028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5aa6dab01453db7fe0a973e622661355cbabdeb3fffd60cf64df3a515bef41b. 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/BRCPU0600031.