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 0x5f1756254426a9f50f61a8ae4ca77520dc8cca3c3714cc7dcd47bf962ff995f4. Chain 2 (Bitcoin): anchored in block 953765 (2026-06-15T08:55:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bca61ccc-25fd-4ae8-822a-b76685e6259e.json and https://artists.proofprofile.net/proofs/artist/bca61ccc-25fd-4ae8-822a-b76685e6259e.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 0xc8788ff6332d1afeb989d64a8c6b87c7a98185a07a52cc3af896a663f9dcb03c. Chain 2 (Bitcoin): anchored in block 957587 (2026-07-11T16:48:26Z), 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/USFVZ2290928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8788ff6332d1afeb989d64a8c6b87c7a98185a07a52cc3af896a663f9dcb03c. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/USFVZ2290928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72ba1f50b46f8c3a7ee094e997dc1c36bba18ac4dd9f13dc5050002c06cb30bd. 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/ATRB42400101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd66c6735813a657461d4a4f103ef2fb18b6c8b7e4f3a97642d5aa5eecac83a91. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/ATRB42400102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd66c6735813a657461d4a4f103ef2fb18b6c8b7e4f3a97642d5aa5eecac83a91. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T23:53:39Z), 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/ATRB42400102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa434fa8ad16fdee1dcd5cd41c971fd9b201a54a39b61baeddfd9d23fa47c664e. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:45:49Z), 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/ATRB42400107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fa3840da39f4987643cb9083390afed202acb321da530a65ee86866d953999d. Chain 2 (Bitcoin): anchored in block 959009 (2026-07-21T16:01:06Z), 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/ATRB42400109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ca10da3bfcacaa31529085dd133d253f6efe71e9e0749df5834c8170cb928ff. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/ATRB42400110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0f97b1808e18b970f7410c2e4d1645ff64856f5338c74c6d51660c4cb249c9a. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/ATRB42400106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72ba1f50b46f8c3a7ee094e997dc1c36bba18ac4dd9f13dc5050002c06cb30bd. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/ATRB42400101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ca10da3bfcacaa31529085dd133d253f6efe71e9e0749df5834c8170cb928ff. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T04:57:45Z), 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/ATRB42400110.
Weird Birthday Song (Live at Rola Studios)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x486fa5d18fb96f77f00c3d7a37da1de692870d40c9a68c59fb38212c2373275d. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/ATRB42500102.