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 0xb0cc9d0d9eb016aa378de9048321d59176a66a1e3982f45f7775bf0845030b7a. 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/86b9aec1-8828-4c1d-a15c-06586d558533.json and https://artists.proofprofile.net/proofs/artist/86b9aec1-8828-4c1d-a15c-06586d558533.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 0x9b9738f978bafdc232c14ffc130af40d1ef361b0abb88c69d726e17d6f1de835. 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/QZK6K2305937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x635c3f5408eef6116fd4a6c677ba8c16634091e7c2e5a023dc749969151d1207. 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/QZMEP2399894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3786ab9b9304825d45f0e7f667ffe8d1ce97955883eb5679fdd64ea321a8f5ed. 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/GB2LD2410350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9704f9aa6e0dc46bdc7099cb61bf66fa7e393e39abf6d2fd00c271507e8402aa. 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/GB2LD2410352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9005b0e0212e0a8d8c9a890350901991d7d50aaff3b445db52199b05e74fe50. 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/QMDA62476753.
BRUXO FANTASMA (Hardstyle Remix) - SLOWED
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc250c36466544b611542e71522a58024d342355a8282bd6ecceed298857bdede. 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/QMDA62476754.
BRUXO FANTASMA (Hardstyle Remix) - SPED UP
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ea969e76e6ec1049ff9cc08025fdcefe8ae09b229be58e77631d1370377c0f1. 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/QMDA62476755.
BRUXO FANTASMA (Hardstyle Remix) - ULTRA SLOWED
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cc884ec15794442b28390f113b0bc57e2f23eebeba375597bcce7f63ccf2d48. 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/QMDA62476756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e81654395f657b22569c537c86b7926568343cc856a55cc18b20f36d80be2cb. 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/QMFME2309233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5049e72e352ba8d424960e508980e4d71aff33c1fdaebaeb8c6af9720e1d1477. 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/QM4TW2418638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5671d8ba807578bc4b19c1beb7c994841fa1752c114c3521ebbf91caa139008d. 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/QM4TW2418639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65b085afd1b2f85e844e581ed1eb07b2d87be06174ad659bd42588a498b079b9. 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/QM4TW2488355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdbb6f370a623a73aa8fcb671439240fa045339be5127911b82ec44303509867. 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/QZMER2309379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bdef2c1e09573e11ced261b96d792b4d28078b2b5bc7fa51db9ef7458e52b2c. 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/QM4TW2435335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x227282694f1abea245ae3f61baec11354f348eba3f261d63eddc62454f991831. 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/QZTAU2488876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45219416c1613d31ede662cc6da1fb5439b602e58254d44542a7b1d74cdf3bfe. 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/QZTAU2488877.