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 0x3ba93c3859b0d6187da69d467b1e17e274eb263fbcfd85fc7d5033c0e4ff7874. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bd5c5610-4e4e-4f40-b649-9998868c31dd.json and https://artists.proofprofile.net/proofs/artist/bd5c5610-4e4e-4f40-b649-9998868c31dd.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 0x021b8ea450f37925272dc4da5370a656352ddf2373f5bce00f1e3f9bed511d3a. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/US23A1544103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86bb3a0b2a7752617cf9832347b0f7af00efca837e0140602bebd79aa081c56c. Chain 2 (Bitcoin): anchored in block 958558 (2026-07-18T13:44:16Z), 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/US23A1544104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfee7471e29725680b04d5053be69680e37522063b5f6b1c8029854a24d05fac9. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/US23A1544107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52e1ff06373e392e0ed7b73e94385bee5c2c24e88892cf3aad67481f1384ccfe. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/US23A1544108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3759ad230abb0a42556d026cfa20321ca598c8efadaeea82febacd8181f6099. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/US23A1546167.
Sleepy Eyes (Soothing Piano White Noise)
Sleepy Eyes - Soothing Piano White Noise
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x088783b3e40843472a49b2a995c2c7178b631e5003174c2df7a00aa4e00ee000. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:58:01Z), 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/US23A1546920.
Sleepy Land (Soothing Piano White Noise)
Sweet Dreams (Soothing Piano White Noise)
Sweet Dreams - Soothing Piano White Noise
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad719fffa302a5f83b60ad85dcc18546059a6050e08a6c6f7cf923e7589a110b. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T02:19:43Z), 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/US23A1549397.