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 0xf5c9e5c1192ac54dfdef4b8e14a8cad61a33cefcf10d05983a90012bb920428d. 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/ee8c4731-398b-4195-b84e-9bf66846e88a.json and https://artists.proofprofile.net/proofs/artist/ee8c4731-398b-4195-b84e-9bf66846e88a.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 0xd32eed6a74612fbc9bdec70335a46c0a7ddd1d2dec11382a79b1d773a6af75e3. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/BXAEP1400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe34a0b4392728159c1312ed9c6ed7ec7726e8b110e1b3d4a9b7007f8a9420295. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/BXAEP1400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d6e2572f3755f05a6a335cae866d4da327ffa030f563b6e48f87c891da762cb. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/BXAEP1400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacfb97eeab692ce960c8c5389845da7eac41421081f2977f8df03f9dd24e47f8. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/BXAEP1400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc030818294a73592d7e423022c9737d4ad3c9691d126060cd0df1d9f4810f08b. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/BXAEP1400013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x849efb48daa24d61d5f6220e89280c354099b76e6be3a48b174f87f762449905. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/BXAEP1400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d991af876893ad272f82b6e60a25690638ec845688b8524f770446c59d26b23. 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/BXAEP1400014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4573cc0c59e5e1635395e0b55b48ffbdab3814cdebf0bc467459685fba0b211d. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/BXAEP1500020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc645007e28fcf1f173209d73bb56470544de18c07641b5dadb39a7943239db12. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T21:23:21Z), 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/BXAEP1500021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bb7326c868b1d1648e64774bff3539581c5dc896313e8bdc528a54a71588b87. 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/BXAEP1500004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x660f435dd42a225dba3b0edfb9bd9ef6a4f319a2cfca208c69639f1637381c64. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/BXAEP1500006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a2b5305d6f8a026f7c32583a16e82416ccf579e8a8abc274a164671e4e5b93d. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/BXAEP1500018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6aa0bacc857d4ff668eb910372b05cb0054ec4613350b3df036a513da77bc6a2. Chain 2 (Bitcoin): anchored in block 958860 (2026-07-20T09:58:28Z), 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/BXAEP1500007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x622e9ad79851c8cc5b76dbe0ee45415c0ef24dc15a3d1f072e1f4e1fb9a900c2. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), 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/BXAEP1500003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ca6a930b688a61632260febb9c6b2841ab038fac4080f74e428409b8c2efd9d. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/BXAEP1500016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb487eebbba21e304d3de2faec639dc0779b6ea565a3f30a1e48807f90675a6e1. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/BRTRB2028393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99ca68c2339dbba6d6656456b4182dedf7a4aa6c794451d37605621b41e1428d. 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/BRTRB2028394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc27089aa279023353d01a890ec2157513e495b4de61d85c987c9667806dbd122. 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/BRTRB2028395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbd5b9dbf0c30211bfec395337dcbccd36629100aa87b8b033ae1d6c92fbcb2f. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/BRTRB2028396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fb16b6d53ed8548333fb343680a57f21fda4e47433b79d8c15f3a842d4a5436. 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/BRTRB2028397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x628f57d2d9ebcac40ecb4222824ca0e5a5bde03c6d757e185cfc9696c094ad0d. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/BRTRB2028399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26cda3b06e077b7059183a4486a92d13ba00633cd82ecf405f74e1a33402ab8b. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/BRTRB2028402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x636eb15ed3957ae368df7994fe602864903113d068c4ab046515b6ae6c02cc6b. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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/BRTRB2028404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x722d8328152282cd38b5cb71925b7cff003560d22f5169513b669016696bc341. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T02:46:47Z), 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/BRTRB2028406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4bd213d0f5fddf2bdea799d407b513aa2a9d1c7b4e31c5d5fd2e1d7c6be201d. 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/BRTRB2028407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dea987eb732b24ec80715bb6764ef4aeb8f6df2ac1bf0b1d5a386d863f3beaf. Chain 2 (Bitcoin): anchored in block 958535 (2026-07-18T09:42:49Z), 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/BRTRB2028412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5394cd908d45be97749ef3a9de9d0f3b73e087d8ad38ad4fd69f87c21659c84d. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/BXAEP2100006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa419ccdde0ce166355edf25feecfc9bd8269540118842cf2683598e1c7d84909. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/BXAEP2100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6da83f1939f9f1fc14476b18ea503e9432320b1e6a60359efbbb47141f71c989. 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/BXAEP2100009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88ec4af99ce2d20fdeea81c56bbb26bee16caabdff7411c9d82db59dc5a5f852. 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/BXAEP2100011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x281d3e809c607dd44e3193ea667d03322cfcc6840d4f3b50bbf3bf31dec8df10. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/BXAEP2200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca90913f9e876811cad191221954c6c2d15450f73373fe77fe5ebce6f166f99d. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/BXAEP2100013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecef32684bdc2b3aaf85e88acd4834919957009f0808b7712dd583b2d02acc94. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/BXAEP2100015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac445276c289b696c984647d21268b3f2e201fa28722985d266d167fb53c9813. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/BXAEP2200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00c9e2aceb930ff9764f79740a31513a418ebe4f60513225b71e40cb43b2eac3. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T10:05:23Z), 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/BXAEP2200012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46713024afe26866bc3cc7e701ef02868ff898cc77651a7b289148c2f0396fd9. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/BXAEP2300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb51b9b3842841f719146d12920522a9beba18e5e9f693a8e20d5f4b565c45f05. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/BXAEP2300004.
São João vou Celebrar (Versão Estendida)
São João vou Celebrar (Balança o Vestido)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b48d028e616fcefdd8c641f67dc16aa653a3ca41c7003517a50d04154c79d3f. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T12:03:04Z), 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/BXAEP2300005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde43bcdf1fb73d5daa7ca56e81f042b58f6ff1869b51360e78151b63f14943e3. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/BXAEP2300095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9550938115df7c3c962bd5538c2c19b17ecf9a3a346ebade044b344b1ea9a4f. 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/BXAEP2500012.