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 0xc28f4a1ceeb2adedb8cbee359be3747842387c0fd6e82b40aa0f669a94730f31. Chain 2 (Bitcoin): anchored in block 954516 (2026-06-20T07:04:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a2f7352b-a1ec-4185-99fa-c1b2ad7afb7f.json and https://artists.proofprofile.net/proofs/artist/a2f7352b-a1ec-4185-99fa-c1b2ad7afb7f.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 0xd72a72e7166545424592dbb3ee4c1c47f586652fa89c3771b4a2e64d78fb411c. Chain 2 (Bitcoin): anchored in block 958714 (2026-07-19T09:51:44Z), 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/FR0W69985371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x836db85aaa19cbca1cb81d265539e5e884167b4080fd1ca22ded114f7685982a. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T17:28:24Z), 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/FR0W69985412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb37ee019c8432f8653cbfaf64cf2d1f56b28bfd7a68c3c934f9650a203cc712. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/FRY510989973.
Geboren in den Achtzigern (Non-Stop 80er Hits)
80s Disco Fever! - Your Favorite Disco Songs
Neon-glow 80S! Ultimate 80S music playlist
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3aad42da675e249872670c718b7b185aa07f8ef7ac07bc12429d38298e7bc4cf. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/FR0W61878338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea16afcf8c3974e9381f157230aab1cd4be32e33ce40481265b24cf41f97e649. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-20T21:55:37Z), 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/FR0W61974049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe799896d1ce97ea868c83c48d402f9a1a4525147d609312acf0208daadc4b9a4. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/CAM460403672.
Instrumental Versions of Your Favorite 80's Hits
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb6bacdedae775e00ce53e14e6d5cd6ded4eb4445fe85f9a6356f354038448d1. 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/CAM460405042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ff814c3a36766d453411843233eccf1078a75047b7bdbe24492173852708338. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/CAM460403679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26395aee0b12fe69c0a4c127faca47a4744dd3dfa39a309de4bd84bf02a9d4ec. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/CAM460404312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bb9f6bb75985ae89d5bc63659ce0a5c2c4a876a38d4a7b9972dba3296857c48. Chain 2 (Bitcoin): anchored in block 958947 (2026-07-21T03:38:40Z), 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/CAM460403092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a215aaa8efd3f2600bd7237a8e46e0b01f4187efdbca6cf3613dee47255134a. Chain 2 (Bitcoin): anchored in block 958691 (2026-07-19T07:19:31Z), 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/CAM460415244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16c80561d1e0c0d5d46610609148bc1c05492ef0a28e224acef81b0fa4a71e1f. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T12:05:33Z), 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/CAM460404881.