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 0xfb62470ab5fc70cdf90e8ce0e5af08698cc2517d92d538841dea5a6f7097616d. 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/a7b92d12-03ed-4f2a-a397-c6fbad123ec7.json and https://artists.proofprofile.net/proofs/artist/a7b92d12-03ed-4f2a-a397-c6fbad123ec7.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 0xe5ee4be28ce9840e4dc08a8e8065ecd73a818d91231b87e027b3a8a61f789228. 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/ITZE51800253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20b35f7bdf64cf5820d8a7ad27b26d67303dbe869879d54caff8757b791427f7. 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/ITZE51800209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83bcb292768050d64234311a53981a9e647f02e908a6e32ddfeb200cff62faef. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/ITZE51800186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2790bbdfecf9f5619722fa446c10a0d3801565f4bb19c3311058f7fd559ff5d3. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/ITA871166018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d8f7151c13186d1846cc73b88c6424a79792e52522cb83702ac12e86b9bfa14. 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/ITZE51800336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe70049273232b7396ba6e8f5fd99065e60b2ace95fb11b9bbc8845213c654f4d. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/ITZE51800079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9659fc55ea24a0c15694f4e1129ef282fe678f7c372b94dcdd57ddf98a8851bb. 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/ITZE51800352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2212fecf7870ee5113864704ec5917818b24f9c926f23af0c5e1a3948731ea9b. 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/ITZE51800241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20584eddc3d72d175dbfcae9d1dcdd2ef1edf0441955b2eade557f48bb20301d. 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/ITZE51800203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9fe34ea3d997317febe8f40c8fc9a91287250c071e2526f0fbac7ae4637df89. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/ITZE51800138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67fad4bce672533267d4fff23af403cf7d4f0842fc3d547a88e8e17e7c7bc4ce. 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/ITA871166019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45db615641da627c3013f27b50e667f86daf662c590e1898e7a2a6e6da1ce58a. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/ITA871466009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d8f7151c13186d1846cc73b88c6424a79792e52522cb83702ac12e86b9bfa14. 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/ITZE51800336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x941537a8fed70993245b38fda7fbebc81676145a67e3230280f36a7231279efc. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/ITZE51800023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4955076fef2f1ff12a90d0847d6eca88da81710cc5abb5274cbe2a65d81a3397. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/ITZE51800367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ae0a31b792e3223f15cc5390fcf6fc9beee3e5ae07d756bb354c91fc262dbd6. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/ITZE51800366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20584eddc3d72d175dbfcae9d1dcdd2ef1edf0441955b2eade557f48bb20301d. 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/ITZE51800203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe176f3bb7dfc2fa42b42c191812f1a5bdb4e7618b525863d318b98fc6ca8b876. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/ITZE52300055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfc7b66fa9dc6a658dc06f1b70c16769fa4814c7d555546731c1e3689cb26045. 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/ITZE52300056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x941537a8fed70993245b38fda7fbebc81676145a67e3230280f36a7231279efc. 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/ITZE51800023.
Eurobeat Kudos 2020 (The Kickstarter Project)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafe3ef2f41f808327e7f85fdae389278529a3b66ed6f1b49c315fbb20bbd0e3d. 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/ITZE52000073.