1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xeddede725edc5d9e0d4595a35f1645cf65a5682c6923839e2dc8b96463ee0fd9. 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/507df80c-5f3d-4360-8be1-14494970195b.json and https://artists.proofprofile.net/proofs/artist/507df80c-5f3d-4360-8be1-14494970195b.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 → block OTSBitcoinBlock must exist at that height 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 0xd6cbd5d50e534381b03e412b317371d324453209975ee566bfc2bdeb4616b252. 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/BRUO61000005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb666dc8017e0eaf7cd8cb7d64193dce5a9577052626573686d22387f75989b15. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/BRUO61000007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6cbd5d50e534381b03e412b317371d324453209975ee566bfc2bdeb4616b252. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/BRUO61000005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b972bd78d328eea1a8ff5f6f4a19cea2f517cdd7570e8814775103baba5e505. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/BRUO61000030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7aab33668dd55329a16956034d9c003bffd96ab5381a3046340c3705ff35691. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:38:01Z), 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/BRUO61000035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80d33fae0b5e74b0e6ed984525d4a273164b229633e9054e92456de3e4e62133. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/BRUO61900003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3a491ee073e80ae8d156ee42796701cdf292a6b04f81f52636ec499316cd224. 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/BRUO61900005.
Casa do Pai (feat. Guilherme Andrade & Brunão Morada)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00641d99148007d3857f3f4206511ebc3b0407c7a5790ee6e3ea297b66a9da27. 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/BRUO62400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf145f62905211c919de7c94da80af5d380a817ef479675027ba8263ef59de5df. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/BRUO62400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x724490aef524809880242378c83b229cdf3912604537178b970144aae5f949d7. 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/BRUO62400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb82542ce9e0fad4c2dff2662b946736cb1bb06a423e182b12bcc088749d0fac1. 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/BRUO62300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad22fa25c5b1779811bcf602ffd7e706a99990b294291ba8443096347cb6acd5. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/BRUO62300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82b86b2f715c992bedf65bd76f278efe989b360b37b0644097ed432b06fe8757. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/BRUO62400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x724490aef524809880242378c83b229cdf3912604537178b970144aae5f949d7. 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/BRUO62400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00641d99148007d3857f3f4206511ebc3b0407c7a5790ee6e3ea297b66a9da27. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/BRUO62400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf145f62905211c919de7c94da80af5d380a817ef479675027ba8263ef59de5df. 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/BRUO62400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bdfb8e82f0b08a2e694305234e2067734a669d403355598b0ef76d0bea4b797. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T02:15:37Z), 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/BRUO62400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe248aa212954d9cadd4c831446e391f95f173e25b6decc51b9831d31a099388e. 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/BRUO62500003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85b3b85d14735e20f9e500e63ddba6bf6cd0d8ff5954f36d407d099234d92544. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/BRUO62500009.