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 0xed87004ecbfb185434d75d9480585608f5d29aa398b1ea28c6a35e35287a364f. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f7c47c3e-6d3a-47a5-84c4-75aac76145c5.json and https://artists.proofprofile.net/proofs/artist/f7c47c3e-6d3a-47a5-84c4-75aac76145c5.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 0x6a85fd0187446a4ec35d7528bcf54d62c9e8b6a4283c55575ddff2bd3eb62990. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BCE7P2401543.
Malokera (feat. Ludmilla, Ty Dolla $ign)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bf48ebfe4f94c0d992cbe698b1b009e723e912bb2cca60feda42b211b0812e4. 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/BRWMB1901342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f2cbdd2c5a4f08b984ec93b963d88cf50dda03639b2c77c64b64488e2bc806d. 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/BRWMB2000851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d76928902869549c01e3bff19263901ea1545d61a104650c57de93c04f07293. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/BKZM42400818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92ba7158944783ba9835cf7862dd4fe53b3b513e9e903f1a337f1a378932c52c. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/BK16Z2400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa21527040596846f8bf8d85719ef58c2011da0962839173e40ac776b7b0bf8ad. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/BK16Z2400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79217b5082d6fbcdec4d938d292f862fc92433463c05c51f6100892bca9ccb5e. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/BC1U32201251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aeb064f0853c222441628d8d488816ed05142827f167a2b54999bbed45f5bdb. 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/BC3PG2400673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7f50c299c24eefc18aaba8ca3cacb073ef221b932134de658c66f9a0ca2de1c. 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/BC3PG2401269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x015bd674d604e2e7ae46cd2f37a4038ffda4128a9b82f0cffcfd91615160555b. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BRRGE1808998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b366f0ce1a6e0b6f710db00c108d77ed452a23bea9141ffc537f08f753a401f. 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/BRWMB2000085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e34740cc2097c9cd44351e58d160c1aec908b4dcf4ef4422a7b66fef4241972. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/BK2242400648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bf48ebfe4f94c0d992cbe698b1b009e723e912bb2cca60feda42b211b0812e4. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/BRWMB1901342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x015bd674d604e2e7ae46cd2f37a4038ffda4128a9b82f0cffcfd91615160555b. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/BRRGE1808998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe096730f8b6a557572b7fc177d11e7ec0048ba3ea151ca62fbe40d0863c6ff99. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/BCAKL2300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bc9b6be46930a12c05d5fdb2b0dcfc7706be01955e2afb9bc7dbba9fe932d3b. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/BRWMB1901480.