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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x121832fce1c18c04c6e45013bf518d7678d8c2cf49ffb7fc40774eb39167e6f8. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/51305661-9c9c-41f5-bec4-46d42892b227.json and https://artists.proofprofile.net/proofs/artist/51305661-9c9c-41f5-bec4-46d42892b227.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2878f15f13b72b275bc624298c56016328cf5d693550ad3b22d3660da3c5194a. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T21:54:48Z), 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/BXN9M2440287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e50fa4e3c426dc39e3f671f88fb6b12d0fd2e398f59f9719fd7b5fbe38430b5. Chain 2 (Bitcoin): anchored in block 958860 (2026-07-20T09:58:28Z), 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/BXN9M2440294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2744b5560ee7ae1a3d4b8900f3ea61dc4aa8326c2221cc4a12f23114c4b8f381. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/BX4E52440003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83835049e5e103594061991bfd3cd5d8243b343ae81abcb138e768eaff64bc1b. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/BXN9M2403382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x486ee1e547e553e9d4ec23804d1b5a71bbd74bea04328703a0cbb6cacd7344c8. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:00:49Z), 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/BXN9M2403383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d673b09bada7e53669299e55cc0c44dd7bc2586bd5d0ffdac9b2abd7b5df842. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/BXN9M2403384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43653a204d86b8574bb9324910603bcae009aea560920fc0642e75d4cefda934. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/BXN9M2403385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda1dffc303c3d98c347572b728009f95cf6e537309d8242145a7fce5979f0cd8. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T06:58:20Z), 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/BXN9M2403386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bd237f48021c99f4948268e7eb30d0f0076f838705c21120d92c019b7f3a691. Chain 2 (Bitcoin): anchored in block 956859 (2026-07-06T01:42:12Z), 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/BXN9M2403387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1f8ad931640e7e0b76687a825dc08ef81da6f02fe15e049965abffc1bf95a1a. 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/BXN9M2403389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x480b7c667ccdabd637de514f2fc124d0d559b90128cca8538c1c516da689832c. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:57:01Z), 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/BXN9M2403392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93cb721ce2663beb4e331694089cdb45e177c7f147135647bc0c3a338f0a4223. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T21:41:44Z), 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/BXN9M2403393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd88e3d81f2c5b585ee4a09c266afa131a9c1799b7203e1bec7eb0df63774b80f. 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/BXN9M2403394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa18d904a27080842837bcf05eb8f0ac427d918da87ebc1fbb936e2bd5b4bb157. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T09:56:00Z), 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/BXN9M2403397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ab22b428267013675fdc8f8d2a19dede0f8e202e93f76c17f7d41a1bd42eee4. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/BXN9M2403398.
Vou Te Pegar / Festa Na Piscina / Vai No Cavalinho - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa79193ec7ba016d4d8cfe1c11af85ccf2eaf8d72bf9c76093346885572d369db. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T14:59:07Z), 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/BX4E52439927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75754cfdc597a4c02b63be3f35aef87e40950f605ad766e34eed9b6eaa1f8a1f. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/BX4E52439873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3e5462df644811b536d674a6a02499d0895cbf643b03c85dc8707c02e4d84e0. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:18:53Z), 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/BX4E52439874.