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 0x1c5bf921cff830bb9a2df53e5596c8d229734bc30310de6e95e7d91fd8d335aa. Chain 2 (Bitcoin): anchored in block 954615 (2026-06-20T22:44:50Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c5d0b983-b84f-40d1-b5f5-120e48385587.json and https://artists.proofprofile.net/proofs/artist/c5d0b983-b84f-40d1-b5f5-120e48385587.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 0xf8d8c965fa9bc81cade95bb0266885b7856d75d2f2a39c34cdaae3be1d4308a0. 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/QZHZ31972181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x780857746d96cdb82bbcc3e08ae6b92a1282fcd8c983b39a0f6a8c2e5654deb6. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/BXLN11600010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8002b74e327243f42bdf7f800bc31224c8ed97d70c0c79bc646293910f23ac5b. 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/BXLN11600012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81c4d4ae7aa92f8f4d94df16dea380cff5bf6ffa7da77c984b95fb84941c7374. 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/BXLN11600013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x407664988515fed25a03e151f656e75516399a64bc04485af5da13df8ee198cb. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/BXLN11600014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41befd5ee542fbf0caab06b5046084d61f243afd1af245f4d0f14f06c6eb8299. 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/BXLN11600015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x975360ba97096700c5b7e7bf9c05a20ad9b5cd12a23319935941eb562394bf65. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/BXLN11600016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27669fb843bc49da3ea3fa26df25f46c54d4b6bc52ecab29ae2b1749c7132c4e. 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/BXLN11600017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a7b761098085053adffaf5334f04cf21f68db9ff67bf4ffb8d9ff49a99dd30f. 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/BXLN11600018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x430c5c25ef3916b7c0c888abcf8a86583e157253b19f4a857c16ac82dc27d9b5. Chain 2 (Bitcoin): anchored in block 960166 (2026-07-29T23:39:29Z), 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/BXLN11600019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5df9c23d71a492abef959ee618539302aef7e4d0d348769e35814b86401cdae. 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/BXLN11600020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xece9aaf854da79e950bf677c8bbb9b4a2827212e653f74c2616662be9463735d. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/BXLN11600022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ed95e28c6c4321852e08d961995553c562d92959ce2a52cd3401764d7b5f738. 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/BXLN11600023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2daea049c2054898fe56575c282e419ab7c6d12472be60936135a8e1d1ce67c. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/BXLN11600024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fba1da90e3ee575d001d290d9ff6d1c8319e76e1eac17f0aaa48f459c25d23d. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/BXLN11600027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18dcb566d216d86b6b74e9e51f5db3f021aa910cd47e8fd088f20ecacc1084ac. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/BXLN11600026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10291e4879c92e5bc5af99f9c21a9a1130c02f366430529266b80cfa8cafbf93. 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/BXLN11600025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cdb6e90abd1f2ccb7ab87dfc504b32b2c002e006e9ae163a84b12efe0752e2b. 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/BXRZN1600007.
Avante o Coletivo no Estúdio Showlivre (Ao Vivo)
Destravante: A Chave Mestra dos Etiqueta de Rua
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f26108a718207e5f298edb0577cd9672e01a35de4847d8f9ca3035ba7827f08. 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/BR6BG1500027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73a4137d676b7ffce413389dcf77e9456491f95b7b3e94a6c5fabbc571628387. 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/BR6BG2100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d7a9de61f769903c5494f356ca9438da00aa3f69e551d15e8f28d50706a0b40. 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/BR6BG1900004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34936b3a4a3aaf89ba576dc812947741231f6429ded38c293d013ab934bb214d. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/BR6BG1700003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c7a79e444e719bd372edc28c2353a97da93d7be3c2a569d7f8d152664bbbdb5. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/QZ5AB1900699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb2da14525f45c0f1ca79b078d0a425976cd0b7a8830312d1580dcbe8a7df95b. 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/BXY8J2000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17ff571bcad0c43106b6f30c4188406ad02c617c88f28387eba331f0d8743ca2. 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/BXY8J2000011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x165436e25954e2c950aea1d0763d6d4ef905e29569076473d59a541fd122d12f. 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/BXY8J2000012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39bd79c19da80de471f99f71b4209acaf010bcd1145504738e05e56ecc640997. 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/BXY8J2000010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd742296da27cc7393f8daf01d659a89180ef47e124be749e5958ece83c2a715c. 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/BXY8J2000009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cec73b1e2fa40d4fcddfb4624f7391742c15a8c3815839772094aeb6afb110c. 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/BXY8J2000008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa094fcd8f2bddd50bbec00a60fdceb5437d4718a58823913565991091e2e3832. 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/BXY8J2000007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb73edccf8b892df249d79626ba3b89c5a7d9712284414df7c14bb394baf98dfb. 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/BXY8J2000005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa89d9231b464b395e07b7c31c13471d8ba9fd103a5a3b4851a70bc897cb9ab48. 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/BXY8J2000006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc650bdcbbbd95556eadd7def7d550bb93b66b1976b3ef65850a78029bcf148d5. 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/BXY8J2000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd38f2847eac55b2f550e85159d2a4f859a4cd28e6042bf5398f4d60d59c323e. 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/QZHZ62145686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa7e5ceefe52ce9067b21662a1c81cf5c8e943ca9df5ba673e42edea98d13761. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/BXY8J2000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ee4bb7e89493fabf052d5759b4f186dcc251572fa9930461e5f13015ae74788. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/BR6BG1500029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc760104538e1a03c154fee0fe02f95fe01548d0f01fac5d777f6c6e139bbcb0c. Chain 2 (Bitcoin): anchored in block 960503 (2026-08-01T03:41:24Z), 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/BR6BG1500030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc272b9d8fb75760026ac36b397775d20185c0be6e62331c69fb46800c01ea038. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/BR6BG1800002.
Herdeiros do Hip-Hop Heliópolis: A Evolução Mixtape, Vol. 1