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 0xc3d1da96911dc6aaf8ba30b6616c6e3c43e4671e8521311f7cffffd9c888f235. Chain 2 (Bitcoin): anchored in block 953803 (2026-06-15T15:41:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ecc5392f-c974-4d23-aaa9-f305485be8ac.json and https://artists.proofprofile.net/proofs/artist/ecc5392f-c974-4d23-aaa9-f305485be8ac.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 0x98ee77532a9188e440abb3f2449ab918d9926a12f3f715cbd47ce393997eda6f. 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/BRCQE1800017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x826d3c0e5f0c3dd06435667b715817498d19be33fdf24dec9e252bf1da1d4afc. 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/BRCQE1800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x334de82229575bd9992b13e915f87c0703c859cfd42a131b56eacc1c674fcbc4. 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/BRCQE1800022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6eb1ed92b01f8c937258a6d7a215fe5e82b26540983ce25e8bcb968ed83497b. 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/BRCQE1800016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecba640fcd6a768a2e82599ed6821b9a10a998641af3aee04b4b0821313ecacc. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/BRCQE1800018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x725dd3ef84c262843855e55791f5b4f8c7c49daa3188c807265548850e644db7. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BRCQE1800002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad1d46a0cf8c0b2c1ba78c1d1aca8e331a9d3c9cf5171d7fdbbe0d03aaa4d62c. 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/BRCQE1800015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23b88da1b2dd2dc89d4f9ceeffbad6f74baa170c0d203910442b4602df5c136f. 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/BRCQE1800010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2888e7a3c43383dcfcfe3494e781f55e2a8f9d22ba5b4135a4e910a1456d408d. 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/BRCQE1800007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c4d1831132db2bc261474a630120e52bff1d1580164de419cb0574ace6d77fb. 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/BRCQE1800005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d142fbef8580c7629dc7f257210668d3c4ed05e2d5e01bafb7e7a44287fc952. 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/BRCQE1800009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3637261c8dc870adcd47b3e47b8bec293850d5d856d63f152533422943a51b70. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:11:56Z), 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/BRCQE1800004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2977c8c3fc41dde5d94111f7a3d6adb695b712fddd68a405e5509bbebf99ae49. 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/BRCQE1800047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d9b609cc4dedd515b9decb08d610661cf7d975668d76399be20c9e1a213938f. 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/BRCQE1800087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x958b3d6063f907912da8a8d841fd95fd37d851f302429bbddf942c0af36d8584. 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/BRCQE1800045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2072d8ea21b80a67522ec08c2eaef4c6bcb59cf21b5d0e2357ec78253c436a02. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-21T16:49:11Z), 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/BRCQE1800019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x157661d6a108c67ad237872f9fc7d3ff5a06578f443a4c42f6dfe3ef7d72aed4. 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/BRCQE1800013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6671798e3a61e29071542cb973f2cf8e7843a42470d524e55c778139de0cc22. 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/BRCQE1800020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0346f2ac32263d5a3c8cad6b2388b8ee0648cc81827306673217bbb5f7a7d55b. 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/BRCQE1800024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d681fe2521aba18225e71b33a7e6bd8ce00b94c1fc23f01b04d5e26af0516de. 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/BRCQE1800025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x845e375e5eb3fde4969a22f6e34856b9ea3497c22f21f3a26fd3765acc373991. 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/BRCQE1800053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ce10c5f921ef27f4cf61013dc4f182afb73514f27d46932981f7a4f5f3e043e. 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/BCKON2100079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x835785d597d59cd7520360cc3c9327fd061b8df4ce4c335617c0c7b5ca7f50c0. 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/BRRGE1805076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63c0f8b3cca1c861768a60bf6c990865523714cd6f874bc39b6fc7038faaa20f. 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/BRRGE1902566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf39685050e3e586fd4c9aca0c2ee9b59d4c4826f19a7f34c6eace4da7697c280. 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/BRRGE1911305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4b93f7e79873edb76e3049095ad4f4b9c4744fb015b6214a7e6c182f522c567. 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/BRRGE1909876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x928ea622e9895fe71de244c2901cffea25fd1527e4062655b57c42f9c5b76a83. 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/BRRGE1905356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x227a231d75f30a1a95676b8e46b13317595f31a889b3e68e20c2dcc77ef8f315. 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/BRRGE1902568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52fccb24ef4e7a57c50b3a76c8d8432eec217784cf0360234a4b5c2ac6b5de18. 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/BRRGE1904604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c20dc9034743af84a90d203f0295681d67920fc14db6995f0bd16f2f2cd95af. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-21T16:38:51Z), 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/BRRGE1901226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70f192f55f6601b364d4fad0cbd33d0e48eefc98904d95221250f9b17b4b4d43. 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/BRSOL2700004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04104e528d9ee5203b881ac7f7d93660d9a4da0433c9c3c666ae6d9755dc666f. 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/BRSOL2700008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x920f20e6b69c30c3a5e5fbf73d122370eb97b179248cb11d679e5508f2741f10. 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/BRSOL2700010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77a15b67eadaf895c535dee64247bbfd7ef7918a1c20147c0a14e65cd6781f74. 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/BX5DW1900008.
Solveris no Estúdio MangoLab (Ao Vivo no Estúdio MangoLab)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc6c7408f75c83856d50f0566b36d55e692379630c3a3f1dff9a8628cc723898. 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/US7VG1711015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x470a1e121131df421b15a03e208b8a8572680ef586dc341bce8ed7782f36dacc. 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/US7VG1711017.