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 0x4ad7992928c331e3ec8ae087fc31f714e2233948fc4dbd7b58c16b0c0b91d13e. 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/fc771311-9398-4051-bd18-6779dcea5c3a.json and https://artists.proofprofile.net/proofs/artist/fc771311-9398-4051-bd18-6779dcea5c3a.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 0x5822c4d7eb8408bf67c87c178383e14acae733a34405ea389e9f5b6fda6a5aca. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T09:04:56Z), 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/BRITM0300284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b3c3e0675be2906094e14305516ccccdfc56bc93fed93e0543dd9e7f60b98ae. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/BRIMT0300286.
Dança Serrana/ Vem Serranear/ Serranamania
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6517ddda6189d73c861a9293cafb8fbf795a0098b502cbbca720563616650e5d. Chain 2 (Bitcoin): anchored in block 958104 (2026-07-15T05:34:05Z), 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/BRIMT0400281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62c39ed345a248e61aef7020bda4f24235c2dba54dc09d4f52d3b8cc60acfad0. 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/BRIMT0400286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e0aaf6353813421e9673901c39c6a479fe3219b52f480684f50cc5abe60501f. 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/BRIMT0400291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e7fad12ef7739a12bab56c5e22759bdbda0a9f6f58fb33ed8a1b3894797637a. 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/BRIMT0400296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5822619dd824a00dc1c4683609353bb44750ac1b882bcbd68c44a0447942027a. 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/BRIMT0400299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84cf26757220995fdb20bf6ba56ec696c78c66c714f8effad4e45c1090f5d274. 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/BRIMT0400301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cfdb5252580e34803fe829c5e464846f968b36c9c96ea0ea0ca45ce72cf37ba. 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/BRIMT0400303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefda2852a9e29070093895d4a1265623fada853a963e236eba81fff72f13cae2. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/BRIMT0400304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe6beb326fce279c7b3c7f9af09b819cd2e30c155dcfc589f8bfbaf8cfb23e84. Chain 2 (Bitcoin): anchored in block 958822 (2026-07-20T04:30:07Z), 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/BRIMT0400305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a37d5dd6b142777f2c8ebe5f9ec4029e7737f360488eac7eb318b464d43a67a. Chain 2 (Bitcoin): anchored in block 958667 (2026-07-19T05:04:54Z), 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/BRIMT0400306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6773e738d374d2fdf4dcd9846338f09d37ccef81d0088d1065f76625e8f5f08b. 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/BRIMT0400308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x058cb2eabc6ae11b749f9727ba2e86d5197d8c254cb5044c63647db3457352b9. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T17:58:04Z), 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/BRAPI0600830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5378bd28a46f1d3a282bca9ad641d9f15543360625eed10c7e698e8e436d26ae. 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/BRAPI0600835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f3999b6fbcdfe9d785328b4d407ca263c4b90d3892b1d6fd82d54bc294fc668. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/BRAPI0600839.
Pot Pourri: Puerto Tirol / El Kangui - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaeb682f304d7674186ac31230cb056e511a1d5b811c2bdb4497fe6606bad3ef. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/BRAPI0600840.
Pot Pourri: Um Bagual Corcoveador / Bailanta Da Neca Maria - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70844a96cef07e840f93ee3825fa3b8786b38d823d90153d7ea75ff2e838d50c. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/BRAPI0600841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52cc4a06b112a325b1e08f25ad2964e1a3ec9fafd6c2005acfe4b8a08db8fe43. 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/BRAPI0600515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07fa8aa15de7d994a316c248b19a07e63c39f77f8c2073b83ff750be4cb6190e. 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/BRAPI0601488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d3ce97b5069982c56413b6168818b0985b7c051094dd6842242d28116661e3b. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/BRAPI0800718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1f847b511787297a492c65007d218938dbdefe0b54c64a5a970a724d98194b3. Chain 2 (Bitcoin): anchored in block 959080 (2026-07-22T00:07:05Z), 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/BRAPI0800720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe16647dfc27ee61bd3e1b5c9b95e13e2bc23c779b81c3b15116d8f61eac32247. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/BXTB12200364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x058cb2eabc6ae11b749f9727ba2e86d5197d8c254cb5044c63647db3457352b9. 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/BRAPI0600830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47a53d4dce922f5b564e14752bc27b033ed5300353e41352917cd76f3a0f2520. 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/BRAPI0800240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47a53d4dce922f5b564e14752bc27b033ed5300353e41352917cd76f3a0f2520. 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/BRAPI0800240.
Pot Pourri: Pagode em Brasília/ O Campeão /Pagode - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa31d6ab70ee199ee9713231435778cd17f6fdfce05b6e1d7f2d37a47773b2b59. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/USA371001951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21121a0cd915c206c39aa2b0a812efcaaeb7ca21ec7d1338488b4cd6e7574913. 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/BRAPI0600834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21121a0cd915c206c39aa2b0a812efcaaeb7ca21ec7d1338488b4cd6e7574913. 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/BRAPI0600834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52cc4a06b112a325b1e08f25ad2964e1a3ec9fafd6c2005acfe4b8a08db8fe43. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/BRAPI0600515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x994b1678d475d417fc45bd2f83d80e3ced1324772d4ef1d3f578f0c60d2c0191. 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/BRAPI0600837.