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 0x06bb942cc08c3db21ab0b96507d74bce5513f71046d3ac4672a40d47626c92da. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8b6f6ab3-4910-483a-bdc2-0ab0d5d928fc.json and https://artists.proofprofile.net/proofs/artist/8b6f6ab3-4910-483a-bdc2-0ab0d5d928fc.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 0x5364134a92a49d523e775a634a1fbf23e9a91c1627703c855757a4181e6fbcc0. 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/QM24S1915035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedac501a9c63eae6dda0edb2efc20a1ef3f506c142da2d3837f67bf452248466. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T01:55:17Z), 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/TCAEZ2020829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb19e4dc906647a84a53470e8075393a259bb7fe937f6d23b932515093c7253df. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/NL4YD2100134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8555e1c503e2e46fcceb39c906c5596b25e860fae63cc0be4514719259402e75. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T12:51:59Z), 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/DEQ022111074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b2d9f34d113e54b56726426eb0bd5706d0b3c35d91f85f2ff76217b0628134e. 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/GBKQU2173032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90f9d1acfcbba6eea8eecb208e4f4e1d83e05c1233edbd7960000d52694b53e0. 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/GBKQU2173034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fe140ae46b537308bce70912125d7a8df53ca37f886b042ad62f6b4fe508b1b. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/GBKQU2173036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec0ffc76e88bac48c4e828b4f46e83992948422e47c4e05f1b06a4a2e8ac2d5d. 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/GBKQU2173037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8d162b95abb3a167f0c82e2d20c5c0a89f26a91e9b86fcc04ed47c31a35de6c. 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/US3DF2182422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0248fc8cdd6d371a6e99ad6a72fd028a410abb27f2fb3db56c2434ede17f9502. 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/DEQ022111472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e46cd2e02fd98573d165bf469a39e5badd57defa8556fcb8e96dde86e02c405. 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/DEQ022111474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2625bb88375a4a9415dc3d155485f17da1d096165c5c190e8b42afd85f91f208. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T05:07:11Z), 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/DEQ022111473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd222f19aba54b7bc7d8c3fd3088afe73bde5db0a3aa8fccdb714225f3f687a0d. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/CH7812236744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cb448b75451c3555f3d30349ae29a436017743e7e037cd708241eb11cbd0641. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QM3DF2205839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbce12e0ad0f8ac783846120542a0208534317dd4aac11578e84d391831fec47a. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QM3DF2221181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb89b48a413f66123df88b6ca0bd520eef64314962ccd73d8f9ecadc5fd41c580. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/CH7812355196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x573b5ac5c108ffd0370b46df90ca943039b871836a5dd2f77145b7bdd3da0957. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:00:24Z), 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/QMANG2216715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40a78bf68dcecee579d1c43b782e92bc261f691fec8073f42e8bed49777f6a9b. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T05:45:43Z), 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/QMANG2216718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4884db0367d57f8052e15bfb1b9301a3bb4af1e550d26ec7627df178124e1884. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T17:35:06Z), 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/CH7812418064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a4577de3eb7044006a68e57f5c44874688f4c28016c121748df4fddc8fd3d97. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/CH7812529037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb51aff2a2131435edb7bbaebfcea2688cae8c832faaa9cd7e1b4712dc458cf85. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-20T00:14:02Z), 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/CH7812536480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x747097536a3b65ab21294299c094f3346d5e4ab7e7ed04dd929b3e5ed9c5da20. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T22:09:06Z), 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/FRX452500655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14df0683deb5e8544c8a2ab1bc2975e4cb17e410bbf5a7949a2f7e83a5c7ded0. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBKQU2143674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb291a5692bff81deb3f220ee6970e3149553f2ab436350b25c565cfe1674669. 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/FR9Z62100081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3224e02958029cfbb547d3a9b9bbdf3cf0e3d0ff46f8415fa521e12b6866ddd. 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/GBKQU2262853.
Mellow Dreams 4 - Chill Beats Compilation
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x773ebcfb94b76d5329d033fa747956acd40daad905882000f5f31b48c1e3c46c. 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/NL4YD2300009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x162c6929fc55a609358db94c526139ae6e73e0336333788937e97a78da43489a. 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/UKZGC2407674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dfd1baeb18e4d26eb7f6c3e988804f7b71a6bff4f00d6ffc6254b49eaa5c168. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBKQU2160333.