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 0xed4cdfd45d6b70d089ce6166da4f4d9ed5de698ad9659738376e2fb5f4f806d4. Chain 2 (Bitcoin): anchored in block 953842 (2026-06-15T22:22:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fdfd0a9a-a01b-4174-8c72-968456b3b638.json and https://artists.proofprofile.net/proofs/artist/fdfd0a9a-a01b-4174-8c72-968456b3b638.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 0xb872a54700ee4873d7df384e4bd21508bc449f9d919c017ba226e9c117d34f01. Chain 2 (Bitcoin): anchored in block 958523 (2026-07-18T08:54:12Z), 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/BCT692300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18779264ea8c4f101b2732d3d49029fe2e7116bb6f010b7eddfd08e9e423a3a3. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/BCT692300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cc635abe54cd50313366bfa45c057091f842b3461286e3914664e8630c15469. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:25:27Z), 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/BCT692300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10e277d75c1cfee4f57037e30b2690df4b65fdb3eae45bdd0e9916855560e661. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:25:07Z), 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/BCT692400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6abfc129c673d9a360a6ffa27d8f6ebb00fe5cbfec9114771d6d23f6cd0a3e0e. Chain 2 (Bitcoin): anchored in block 958473 (2026-07-18T00:52:36Z), 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/BCT692400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa478ec6fbcc7d4b46c9c1e70b730addea275f9023b7c789ddc56cf744387e6fb. 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/BCT692400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1628f61c46be9d9f0ae014955bb98a4b0de74bae73d4e491519ceaf8b6d57b91. 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/BCT692500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0e3f8d4e63b8b596d8596438ee78ff46092daa46ce272996e6a9bd45de9d83e. 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/BCT692500002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6abfc129c673d9a360a6ffa27d8f6ebb00fe5cbfec9114771d6d23f6cd0a3e0e. Chain 2 (Bitcoin): anchored in block 959134 (2026-07-22T13:34:27Z), 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/BCT692400002.
Só uma Brincadeira (Até Alguém Se Machucar)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb2c0c9ac5185078753f8d4f69800fdaedc6cf352e6210b5bee5b0f573325334. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/BCT692500003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9624bc92d53f51183de10c31b7fae54420b801f1a1baa9e9a1cfe5c4a197b43b. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T09:03:07Z), 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/BCT692300004.