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 0xf3926096d3a50691193df4bdb73ff336589c99d849cca06a5daef152d35527f6. 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/267053e1-5749-467f-a740-b283dc78e0f2.json and https://artists.proofprofile.net/proofs/artist/267053e1-5749-467f-a740-b283dc78e0f2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ressentimentos III: Peito Cheio, Alma Leve
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 0x5aa178e962fa48fbaac4dc3cb480ec3d387aefb79d12c6cac56476783ed10710. 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/QZNJZ2168294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e0d9ae105cfa34df1157e08e2dc0199e6dcecde3013474c188b875faf60740c. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/QZNJZ2168297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79f04703d3aaecd0170b11d723079a75b1ab15d339292da2cd5f09e1e4eecc96. 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/QZNJZ2168302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92cb10691f6750990133645112c64e9499dca3a9e2d87fbf542495629afb596b. 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/BX8TS2000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a8f512b6af4787d231a396c7af25628af097171507b67794bfe37a5d3b2b40f. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/BX8TS2000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc0157b003d275b451a93db492e05f66838938915ac097929ebaf5d4144dd5cc. 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/BX8TS2000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a7596654d827a285b04e62c582ecf2387f38d10e264c840396d9a44e70add91. 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/BX8TS2000006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde3fae84bf7fc3fa3d223ece2dc54357d824f9f71ce09bd0f5e3109c43dd03c6. 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/BX8TS2000007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb12ad81352acadb1386f7d275d9f6d0fdfb598aa9c3149b70ea2f39198c02001. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T17:35:58Z), 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/BX8TS2000010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb1560a767404e327b6e0d9dacc566f91e49db829b63c6c0ea5ac596486bb14d. 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/BX8TS1900008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d7a6614d8ac96e54b0f810e0f239f497cb34de9ebfd601bbf582885e2994258. 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/BX8TS1900009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0895cbacaed8987ba35ebfc22902bd65a91042da8b5cd63a0b48d7d83a03ead0. 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/BX8TS1900011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51bbedd3ab322c64c54f8286dabc02e1cd7e629477d9639e3d0cdedf9bb3f601. 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/BX8TS1900017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a9ee4f19580098ff2b234754003ff8b4211c3ceffec148e4ab86ed1f049b167. 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/BX8TS1900007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcd5404de3fd18ec8f24d60f5d77c2d1d9e49fc850fa5237ca0ff7d34f8b6a97. 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/BX8TS1900010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd38a97c1a7d10649684be7652710a8c1afe5a2ec852c8a0699f240b0395e8e3e. 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/BX8TS1900016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc35f976dce27b2f6a9e0bc5f8fb1dedf2622efdd2acdd9f102758faaa973fa59. 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/BX8TS1900012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfafd97509c143ed7bde750e51b61566bcecd2d34146f686c94ad54d46fcabaa8. 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/BX8TS1900015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4418eaf5ec163e754d88b75c5beac65797d06ee64274074b28def2c39d7b17ae. 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/BX8TS1900014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0db709078944886c40124a0dd96445c84e8db101ded167f893eabee429b4f9f1. 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/BX8TS1900005.
Diomedes Chinaski no Estúdio Showlivre (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x425a94b3d26cc55393811f59d51c782cea325dd009f457676d30dfad0576db4d. 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/BXSSW1702327.
Não Precisava Ser Tão Cruel (European Remixes)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ab7389edb3de9c20f7a09e52593e9169381ea0ad552ce6da58fd3f0814aaf97. Chain 2 (Bitcoin): anchored in block 959134 (2026-07-22T16:28:29Z), 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/BX8JZ2400001.