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 0xca78cc6277577937baef555974b78daec77c45c4034785a073f953618ff3b605. 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/6c3dbd54-be9a-4237-9a3d-3e9b282afec7.json and https://artists.proofprofile.net/proofs/artist/6c3dbd54-be9a-4237-9a3d-3e9b282afec7.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 0x1dada308a50304fbbce5a23bcc0f07fb37a502ba6789f214b0c2722986960b94. 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/QZNJV2352006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd640c9e95c4ab2a264a55fec04788679abaacb48ac127f776506bec12569559. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ES75E2304203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe375d9d2af628ecd30484d12ac3a8ede08607dc01980aae1c759a6455856dfa0. 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/GBMA21889037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c7c35d96f0d54e43b01cb1d08d12e79a791b8f9f0ab944a4d8355214449ce3c. 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/FR10S1862351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x300217f2b503190f0109d380fec0480592dc5cfc190a82cd18dd21f765a284cd. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/FR59R1791527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5461940d79cf222a01c9a6e9f2d4c077548e34883a7b73dedaa5d4c62cc1886c. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/COAKK2000300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4cf93c15399172ed68a712e7f30bc26cc17facc802c39d1fdbd4e533306a7da. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USHM81430336.
No Me Hables ft. Lil Silvio, Kevin Florez
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66021a2ada09c43eb581e8c6e88e9112c454e29338deeb3cc73e43b13571f1ee. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/CA5KR1509096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe18b99778b966a232eb2e0aac61be8f1e64a0732ebe4f900dd1880d1e7c10a6. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/CA5KR1509115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26ba8b69dfcb987b776944379e2b144be318cd8d69078d5f7c2c2ee44f9ed2d1. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZWDW2424468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x234e48d3e074d1b919b557d790a4f778dbf484784131c014339ff851d764b5bd. 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/QZYFZ2463304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe80b438e60f7cab63aae7496eaefab5c4459df1bb33466e6330c4b0d6e5ca5fb. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZYFZ2463314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51f2c565d4563d498165be0898f3158c4f0ec41b85a4fbd11b5357a917953ebf. 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/QZYFZ2453826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12f9633b9e992feac9c43c385196c08fb8527dcc3691ecf51df61bd3e7e6b168. 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/QZYFZ2417172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x405c1297445bcf0e6b37766434f8631502c8dcf6aa7162fcdb981a46a68a4ff5. 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/QZZ662467890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c5579cb59fef11c0505bd4bbc272e77c93a6bc1ba9b25dbf6a5d2cebd96037d. 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/QZZ662467896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf56fb6bfc2933b0b85cfaa70a12fe72bcea520b3876bc50261c75b61a84dbd9b. 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/ES75E2402137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x845d46d8757792dc8a9109d34f61e83391c2e77a760cd6820dcf49b483769628. 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/QZZ662409068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c2cc591ef7acef0003f06fae84678dd678a56198832503b1468e7c694ae568b. 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/QZTVM2305685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2982cd761c55c8726e4767ea3788e0cbb11eecbc212b6b87a0dde14c10b00dfc. 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/USCGH2194364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c62bac4895bff1604e74179b2bfc91585b2f820c450995ea25b289575ef118c. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ESA012292945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84efe16a24e5315cf288fde675cf42f5051a4ccf17ab6fbd9cf214a1f3db73eb. 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/TCACO1675492.