1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x37f41d3719f4a3ff11b06d0625391b224fa8655e3d98737bc70112e0238eaea0. 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/0eb0f4ba-6d9b-4970-88bd-bbcdfa2170d8.json and https://artists.proofprofile.net/proofs/artist/0eb0f4ba-6d9b-4970-88bd-bbcdfa2170d8.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 → block OTSBitcoinBlock must exist at that height 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 0x3e82d1041fdd661b4494d31f3c6a7787190ed5007e9c89830708b63250b4d0fc. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/USI4R1016642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa18e21341b82c9cea3e50b43371465b559c0c344376a30cc34677a6cb54f9eee. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QM6MZ1528099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x302fe60b0ca53572bca515189d48acba514fade9444f53231acc8374a52920a6. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:55:38Z), 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/QM6MZ1528100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26990a4d76db514d001fd42b972db8252df1fe6fcb86629401c7c8e024428049. Chain 2 (Bitcoin): anchored in block 957599 (2026-07-11T19:42:17Z), 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/QM6MZ1528101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6419933f1ab511d9ec4062385c9b87b3acd92fda4126f3fe760cc7c301cf78dd. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T14:58:47Z), 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/QM6MZ1528103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94eaf26bb6aceb3d6c05a0d2b479f575e5dd13db80dedd5b8fb6591f9aae0d13. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USZMA1550321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf08d6b0cad461d4a8065430e80dfddcf8851cb6fe599dc4e141a893802e1f0d. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZES62376328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb69fa4b0451db8cc44df45f61dd021d9a8c24ced086c83097ec2a0110dbaf661. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZES62376330.
Chilling Cuts Volume 4 Compiled By Sundial Aeon