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 0xf423a61523b9fff86efefd4add774e159d174594be7f63d83a9aa696e1bea9a5. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c69b1d20-6e88-41b0-887d-14ec1e4aad50.json and https://artists.proofprofile.net/proofs/artist/c69b1d20-6e88-41b0-887d-14ec1e4aad50.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 0x07bd3df55a9a9cad8cd5f2845a25810d5738cddb3d0ed18ed68acbe2c77f75b8. 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/QZGWX2009729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x594c684060245d3cd7b10acbf74c63bf03d4d422a8156e8d75a138102799658d. 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/QZGWX2009733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c678de2d33277750226bb977ccb4d55130abd22d3f18c72616dbf792ce753d8. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZGWX2009735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b8c5137fb549f6b358edb36e4e2f9e2f347660bb04e01dce98038ddba0ea4ac. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), 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/QZGWX2009730.
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 0xc84a497ed03b0230e6f6414e81446d2b1ddb065c174ba0f899d81b468347988c. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/QZGWX2009731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0b288de99b4892af44a8a1e1d54c1055cf68acefc56407641c25ec2eb80c755. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/QZGWX2009732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30063755d0ac70f321807ed037a2fd7659472987b75ba4005d0f1d5f53ad9caf. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/QZGWX2009734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x213e773e5739cfa74b454ffa4535627f5c37b4faa85704a77f2fd3b342a0ffd1. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:23:14Z), 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/BRSGL0100288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e3f2e1b0e85d0010f5fd764c537970e99436a73918b23f6b5ea8d92467b5a1f. 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/BRSGL0100289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85e82e223cb87f09b5016f224c588086556a04341e00d8c570844c676d39c6fb. 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/BRSGL0100290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f35fcb01498d187355f444dd2237d26da1c3435084a7048ab57be9976d21d2a. 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/BRSGL0100292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x628ea40b61805214c517ea79df70532ba4fa2571c02138eacb0ed03d1e70bf19. 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/BRSGL0100293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x123308bd1dbbfd7de08267d5218b1156f887b95fd6552ea061aaa0266e4c58be. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:56:35Z), 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/BRSGL0100296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca278ccd92b72045ea9834c3a6e4a17d8ae2a65352c85496e8dc722c7103ba22. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/BRSGL0100300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd378f723ac58311203f2f04d38bc221b41545896cef98d40178baa9c1a2b16b6. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/BRSGL0100291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddd8a0138271640c6290d131f8469a4ebc0f24316eb475e151c9dcf4c4198566. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:44:00Z), 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/BRSGL0100297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd49b2d69165d086b5033c42200f64e179c791f5b7da157394396f09ddb768e50. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/BRSGL0100287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd584fef28a831f6f1a7db8df7fd94faa703263c14fa290c15736f442c74bdc1. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/BRSGL0100294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd9c82960afdc4c700c05782de989a4b71fd1d4a0efa234caf2d57d95d00e939. Chain 2 (Bitcoin): anchored in block 960200 (2026-07-30T02:37:10Z), 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/BRSGL0100295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe996176c5450b62f64f1d56e09c2cd007eadefb0519bef0408063cf3ceb75e20. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/BRSGL0100298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fb895b0023854c9e8ef01bcf91443b34849f0b74f267da297257e60b5bdbd7d. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/BRSGL0100299.
O Melhor do Pop Rock Gaúcho - Os Sucesso da Antídoto, Vol. 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f2a4289ad77a72be5a6f42b7d09f09a9ffe39c22588a6925def04d40eaae04d. 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/BRACT1600501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb3eb40326e9ebf706f7beceed7990b65ec9a3cac4811b47b32f9a839da6c059. 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/BRACT0300097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x417ab268fa458d14c033b9fd3fd421733b182d1697b89e72ad927beea62bd242. 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/BRACT1600418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd25965e8612a7fa8db938f41c5c00f1298762c1ea6db3358ccddf0efbd296d8b. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/BRACT1602401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9463e4d9861ae966f385a557562fc996a4e906b0ea4148b70cdef12b7e52216f. 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/BRACT0400637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x142cc0af303775bdf0371b2207c84616f800f2870807e9851bedc9350b07c5ea. 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/BRACT0500534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8926f699cca79bd96557eedf0cb6fea04712cbcce78cdc74df1a88e612fd716f. 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/BX4D32200003.