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 0xeef1fc4f801b53d8410f0f240982753cd35adde5b15174d163d60c23e32a3d7b. 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/bcc19c20-1fa6-4819-9f19-2930df4f66ca.json and https://artists.proofprofile.net/proofs/artist/bcc19c20-1fa6-4819-9f19-2930df4f66ca.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Comparsa Elétrica: O Filme (Trilha Sonora Original) [Ao Vivo]
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 0xa2fff11883bc888fb55cf910fc9cfb9c6f80aeb880bf78dea547cc3656340eb7. 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/BRSSF1600001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc52f7ac6a2db9775f56df7d5c7fa62ae5bf5b3adc8726d98fb7cab835c74c1ec. 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/BRSSF1600003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40249d9ea5f95f6df31ef91aaa25fbc772c1fbfa032283fcfeb804c1fc13a436. 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/BRSSF1600004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63780bbdc3b7d319de5b21546585c274cae42852a7e8c5724f994a2a992eebbb. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/BRSSF1600005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d3b425252f9ea2b62af60364e4296b3bac3d20ef8f6cb49a9cc08a95f494873. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/BRSSF1600007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1d5205f825391f665207e6fb618019141b1f7a184a9b04135847d91d73e23e5. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/BRSSF1600009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf026acbc5fe720856a8578bdc2f22a175f283866cb13d6503d23cfff8ff7b65b. 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/BRSSF1600013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb22988e8909013b980afe1ea6f0af62e27c1dcb122dcdccac459c3dde78657ad. 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/BRSSF1600012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c3739434eef902252dfa35c1708da7457aa26f61c1b1dd99a5a8c02e7523f24. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/BRSSF1600002.
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 0x3a1119ee6f3761e63e1d4e0677b10bb63f292ebbaa3d323fa876f89d609ff9a0. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T18:55:47Z), 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/BRSSF1600006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee17e337b43f521d94ac89864fc2d2801679b8009a7b8120e7c7e85d4b99a58a. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/BRSSF1600010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd276878db3233f582adff3ed166ec63583ba3294ce4e18c42b37f80b590941ba. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/BRSSF1600008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe35fa6631d0277171b55565d36522e5186d8d11529ef1a01362809a94c9be418. Chain 2 (Bitcoin): anchored in block 960113 (2026-07-29T13:38:16Z), 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/BRSSF1600011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05da06a8ffe324172a6b2ef0002d86982f10a72854ac2a185f87dc8136d7ec66. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/BRUSA1100061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a0144a9a047bb65e27f44ac8c5a80defbc80068d03c70c18221a4cf2ab3dcbe. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/BRUSA1100062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c7330380a92167d801e016b044ec5bd95b78a4584ff902f1871b28f92f68c29. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-21T17:28:54Z), 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/BRUSA1100063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a09fd36fc32b77afa9bfc69c905ce31f5f14edc97de8355abcd8a0305c53e40. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/BRUSA1100064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fccec6d1a09a5757546616f190147475f3f90325b5a1298b3a2672041a22ca4. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/BRUSA1100065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4970f7e939f21dc7fc25c8440c9e96d308920590d5215b7b3f717a47c1bde6ac. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/BRUSA1100066.