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 0xd41013285420ecc27720e83c20c916e8805f8bee3dc7ab76ea58e7ee427bbf6d. 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/21551abb-1a3c-465d-8eeb-ca64e34908dc.json and https://artists.proofprofile.net/proofs/artist/21551abb-1a3c-465d-8eeb-ca64e34908dc.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 0xb97b215989807394a4ecc5f7a785e28dacd03a32b473940261e04c8db57bdf2e. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZMHK2243275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0b4435e5d23b0c680822a181ccd176b5affee6f9574a13d10408ce5f5be038c. 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/DEUE42000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea6b0f619eea4eb666d7365c2ee8b9317862218316febd82584acf782f60b143. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEUE42000002.
Hold On! (Jetique x MYNGA 'Night Rider' Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb37b987894f9326dca189596766bc2d130d9d05e18fa1625f63d5ba09066a4a9. 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/DEUE41900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0e4996214f3a1778d9e767ca221eb7319d018c77712e0d85dc93ba839c36446. 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/DEUE41800013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd2ff0b2afbe675a63a062adf998c76175aef645bfdd8cbc0618b449a8bcdd61. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEUE41800009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9346b572e98a8d8140f09c4d54ebd216cc8a0560c4c4cdd37734bf8ea19b6511. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DETO31700258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a59eabaac60340d6dbb9595a9bef94fc9acd1ab68e1103efaac5923402b055b. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/DEUE41700014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd7269a1d9b4cb527d28e73f2c3b6272643deff678193ec8fe38d046bd2a6a20. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), 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/DEUE41700008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0915bbcadb578b98e3ef31f27875286c0911eebdcdef1253bd38663b328b945. 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/DEUE41700005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3e9a0f2d97ed62691d02392095cf25a3e756f6173d7fd7bc33e3a50ebbfc98b. 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/DEUE41600015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ddb3b9fd126f1fd8b1096d0d591e033b7e05dc3b8bfbeb3dca479b6da8aeb07. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/DEUE41600016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa24c7f9ab2503e37897e2505e74eb5a9627c054216a3f94af4357798d05fae9. 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/DEUE41600017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8f903477dda2cc4330da7fc1b1bf822d3e46cf54292df0d19ba65da93383687. 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/DEUE41600008.
Back Home (feat. Cosmo Klein) - Kayliox Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67468bfbe913dd88db7f0f963f0e2366e144ddb266c4840e388416730394f15f. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/DETH81400003.
Back Home (feat. Cosmo Klein) - Bender Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fac4947920cb2b660dbc6dc5fdf79c30573a9c80e0aade7fba9153b674dc5b4. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DETH81400024.
Back Home (feat. Cosmo Klein) - Matoma Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4307d5903b01d08db89e6167e3b7f1eb3365597a1584466fa51e858d6b756727. Chain 2 (Bitcoin): anchored in block 960170 (2026-07-29T23:52:38Z), 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/DETH81400022.
Back Home (feat. Cosmo Klein) - Unplugged Live Session
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x784187d77aa8f054f4cbda21b232fc1ff70a9d0499295be8af8dfc8b8890e3ac. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/DETH81400019.