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 0xe6089dfd7abd53e2b156bdd9b5ab559a676f4222893955947c23b32ff7cdfc18. 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/93d68396-36e9-40df-a74f-c8c95e51fb9f.json and https://artists.proofprofile.net/proofs/artist/93d68396-36e9-40df-a74f-c8c95e51fb9f.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 0x8bd5170a8c2b3dec18766802040397267d52401a3500de031821cfabfab4ee1c. 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/BX18R1900042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa22ce80241ca67117d2d316a4ea78925531c3e6165fe975b0df941eba6e7e31. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:45:21Z), 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/QZNJV2088465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x314b43e245701beeaaebe868ea812d1bdd52e5a9427550b99d75e3212165747a. 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/BCD592100027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88a16c97275c2eb0795de6eb8aaaef7417e8af8b64b0fba01d67e3e13639a2a4. 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/BCD592400021.
Amor De Fim De Noite / Mina De Fé - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31faff1ac65aace69aaf5310a76e205f60c4ec3d11d4b92064514e57ee43cc50. 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/BCD592400061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0499e4f8487a8d77df8d20faa601bbb82333638b74e396c6974baaac00538afe. 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/BCD592400063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a7c6c3bcbb68cc5671917d2c58b82c36e2e4cb3574036eebd8144cdc7b944ab. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T19:29:23Z), 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/BCD592100120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83e12155b0e4c8e3d32a3d3cee068ecefd3e014dcc4dd00e877ac6efa83522df. 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/BCD592100123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0499e4f8487a8d77df8d20faa601bbb82333638b74e396c6974baaac00538afe. 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/BCD592400063.
Amor De Fim De Noite / Mina De Fé (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88a16c97275c2eb0795de6eb8aaaef7417e8af8b64b0fba01d67e3e13639a2a4. 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/BCD592400021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf263440d51af7cfb4dc69ed289443cb864f5982fba50260e96d57f03b51fcb1. 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/BR9Z22100068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebf4f208b57babb8ebd233650456ea5a37171133949b7815e0286cd2bf5b1f76. 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/QZNJW2034178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd12704d18fb4ba35dec19a4fbd730fda59cc60de63445f7c98acc94487ad667. 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/QZNJV2034536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bdce0975b595fce581e463e98d8a63153ce017896b248ee7e774be61ffbc27a. 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/QZMZ92096939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13584619d63b8ec8803697a0cc041fc8e4a229eab078ae53bef62a32158ae9f3. 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/QZHZ51965694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fd4375bd2a11112059f47b8eecbcfa02817ed8420a342c4439f87ff393d2bbd. 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/BR9Z21900262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e86032368c96c4590c039d8d5e0e52f2e55df3f1a8b0b2b904983812523f744. 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/QZHZ31949829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b0af0534d0c08292d5171565cd3f5e4fcdab63b2361fb0d724803302d27eff8. 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/BX6Y62400076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cab94ee76cc15d1fa0c6afaab24aee3fbf6ae18459600c5d0e1815e3402729c. 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/QZGLS1998780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd537c1e45316bd71142aa2f8e8289e665aa6a8d02f8040a68622bb6de4c2277d. 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/BXLKC1900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e8ea4d054d2bbf7be4eb5e5f9e301c5b15a37774e7d3c7cde36a9508475852d. 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/US7VG1955979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ff171ff09c750d8e638a17e4c902416ea0603b483873c968d16fbf5c5f0e565. 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/BRC1S1800206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x931508337ea55a051be7fa76f43f45141cb867b460d17ae2c3696faa963fa395. 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/QZGLM1957599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x434e50e33513e7d1e4c1dea7fd1e81b3949eaf305bf877b64d19d07c4faaa9a4. 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/BRC1S2200043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadf39f15ec35a53a1d44528bd3d9e0a6bb4a07b8e5a5e0e0e5e192319b1cf47f. 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/QZGLM2165929.
Luazul #2: Deixa a Vida Levar (feat. MC Vinny e DaPaz) - Acústico
Luazul #2: Deixa a Vida Levar (feat. MC Vinny e DaPaz) [Acústico]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x866dd0912e8bf2d25f8096249e02e7276cecf29701164fd4c6c76330905bcc63. 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/BRWMB2100622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62fe7c1aee63f7d0cbcaa515e00e524de5df66f0ee5033f99d0b3d64d95aeab5. 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/TCADY1884367.