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 0xd077ebaa4eb567c8054ea49b4cf55ad5f83658f3bef775dc607fa95bf771efef. 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/e094272a-2db0-4d2d-a5e3-85f8d83db952.json and https://artists.proofprofile.net/proofs/artist/e094272a-2db0-4d2d-a5e3-85f8d83db952.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 0x5d83c7a929bf389b16aa2a85aedefeb5ab98c7ef9e070058fa4ff72491ffe261. 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/SE5BU2598784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72f3bca16d6a7d936ec048f039f5c51b8c11ba569842aa9ced906f912973d4e4. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/FR59R2556805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf8fc3f308680b62b08cd664bf0e9b98004109bfa2c16308616ac9669d4e16c0. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/FR59R2556806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd75911591d202f368a8368c53de3b3880acbd9ab527844e9c178c8c45a513edc. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T10:04:40Z), 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/FR59R2556807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5d10afe56f4c74331232b5f29d7cfb12ff75fae1cab86ebb7067c8eecdf2ad4. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), 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/FR59R2599296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b1a4b52da85bd453307be87ee94b43006c5ee20283339265a1eadab7b8326b9. 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/FR96X2529206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97bc18df6c18102b7b7e63fc6beaead353fcf8ac6eb3218fed1b270cf2247b0f. Chain 2 (Bitcoin): anchored in block 958579 (2026-07-18T16:26:17Z), 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/FR96X2541323.
MONTAGEM ACCIDENTE MORTAL - Super Slowed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae4de0fdff4a35a5a39ba7fba35aa108d85d25110800e6fadefebdc0bfa00c75. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/FR96X2541324.
MONTAGEM ACCIDENTE MORTAL - Ultra Slowed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5021c896118983acd152520541bf980fdaf7739efdf4d7eef1d8b72e88f1cec2. 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/FR96X2541325.
SLIDE MELODICA DA JUICE (Alternative Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb17f7d41864b91dca2755769969095711db19edd1e21b58a0643d1b1311d731. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/FR96X2555652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90afba95f8e8352cc88032b775fa07104cec8f599c6a2db167ec41e24e0bd327. Chain 2 (Bitcoin): anchored in block 958785 (2026-07-19T21:40:06Z), 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/FR96X2555653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82f5300eb215c6a209046a66e668d0dab75f3ee0b54caf9d523cb526fc90a121. 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/MX2832530808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f9d611d7645267a6e425f87eee46615932850dee83ba27846633bac20325f79. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/FRX202583152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfe3f2f7303e01787b2480b14849d8f1fb5d57a21ea9130c094f839f5645a272. Chain 2 (Bitcoin): anchored in block 958830 (2026-07-20T05:30:12Z), 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/FRX202583153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca7d0caceb7e67b2fe24a4433c24835a7f69c3ced68043bafdd68be0cf88f92b. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), 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/FRX282592742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82af0e49c7ab3038523ba752be7d803b56e078242b9238155abbee535fc5f7d2. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/FRX282592745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21ae774e952538e165f25ba72c814ee23a2320c40745ba7a3edee425867f3d1d. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T04:30:31Z), 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/FRX452522356.
RONALDINHO CROCODILO FUNK - Ultra Slowed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ee0354a24e40666dbaf6bf1ee3085ccb0a7b2c2b18b5a3a0ee701174b3ac96f. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/FRX452522359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdc823af19de90d22ae6a1699c0e5ee7e89638c41e182fa40011efcfb9d07308. 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/FRX452571255.