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 0xe12e282a781884498e8728da3995e0cf5b16eb6c8693d78e7c6f6d080d377615. 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/9762b430-c3b2-4e8f-8a99-e753e1dc83d1.json and https://artists.proofprofile.net/proofs/artist/9762b430-c3b2-4e8f-8a99-e753e1dc83d1.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 0xdf81492fcad78f0740c6ba7f9effd4982bc42af3b62e9818ea6e0ed7f7711932. 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/CA5KR2198657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa303652b7a10ff8ea5acba67a69ee71614b799ad2552b08b5b0349f1f92640c1. 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/USYBL2001763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa273d06bd3bb6fdc77b3420407128faf5cc53c2bebee4239b935955dab0e7a86. 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/FR96X2168032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84513271f1909f5b205b64d606d78fb1ce5949d64d550c3041981f5ce02d1cbd. 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/CA5KR2129055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe03cd03d5a6308235b5403c19265c3cb6ff2f53063867fb94c54cdc9701ee686. 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/US38Y2512921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1ff4d7c2e6a2d6f1afde06b5a9fe957f443e7060f7a85fc7f2e125f001160cf. 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/GBLV62400362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07485495772d6086bf59ae29919fee10cee5fd578338c149e46d79fe40d8b450. 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/GBKQU2343472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xababccc3a33118d6823faa93cd5f1ef4200861cbf39988a90aed06d35b57fe4b. 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/GBCPZ2221243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0cd5d91b7d2312c4cd21ffc6e0b16ec2ef16ae3fb30f95d99f71a9ba8341438. 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/GBKQU2248182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26ee096039e6bc77766657fdbd63329647d11e07d90b20daa4288975ecf4d3f3. 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/NLZ542200277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8122a917f2f5acaadef8ab8b0a9c2f18fb40896f67c6d078d77068b6138f1bc4. 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/NLZ542200014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4e87cee495a5950335b9517ca681278f4dc82fa17f9cc35baf00282090e4221. 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/NLZ542101045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18f35803d390232306b3108c7963a42fcdd502ad33a73b6ee7a0843b2fab2d7e. 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/CA5KR2148204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8f9b2275dfc051994bf60057382b52d7f37f2a5b814a8a1967a3854251f3749. 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/CA5KR2124312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bc6cd81fe1591124c26d8ddc1377602f703d9cefc6cd6a2b94f2c1a965dc070. 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/CA5KR2109927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06d66beec65cb34c73d3bcbf8761af098bfd7c3c351ad7a3b8f5eacadab1e7d0. 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/CA5KR0033230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f8d36839dfbcc2095593354f6cf00dc39fc35291a8c6e6e8cf4fc324c91390c. 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/CA5KR0033232.
Here I Go Again - Slow Motion & Duarte Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cc5e8bb46fb3ee6313b235ca065c09fc5c741bd1b3cc7284d2626ebfcdfb99d. 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/QZK6Q2250927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2ef0d001eaea3600a469f8808e25cb242068de67493c2febdcd6c219e626621. 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/QZNWQ2210567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd183e9bf7c77d9f21cfe7ddab13b89a2ad697678bb1eb6af01dd9d5cc1f8250f. 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/QZMER2211714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb9ae68428c68570c635ff129dc306737f0eb01a21d40bb343bd03804a348bf9. 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/GBLV62423584.