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 0x85f73f08d3c24ead222663bd1a9e4a52151a14da3805f5bb1fdf217c7fc2754e. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2298ea9e-5a04-40ef-b4c4-7f8c98941aca.json and https://artists.proofprofile.net/proofs/artist/2298ea9e-5a04-40ef-b4c4-7f8c98941aca.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 0x560ad08aef3b07aede68e52ecb0d03af2db420fb4d16d3dc6b839092cfeb11b0. 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/TCACA1452830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea4656803629daf123d795ed20d496538d645966e6a8cf830e767369807d86d4. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/TCACA1452837.
Ikkje La Meg (feat. Martin Hazy, Amadou & Kikkan Han Kisen)
Si Ingenting Vestkyst (Remix) [feat. Angelo Reira]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42e3630d47b91f0a3f6ea48368d3372150d202af937d6f454c90bf0118ae850c. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/TCACL1648714.
2 Blå (Remix) [feat. Cezinando, KingSkurkOne, Vågard & Kamelen]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61cc0b9430919a8725d80a629d989df1b76c3639c9344fc3ff678a6018ff55cb. 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/TCACS1651530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc31df80c4fa259ad49d57a0fdc0418d6551e44fe8dc44f788f753ad1fecf701. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/TCACS1651763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc01dfdf0bafcb50ea02aabb78e5b1169ea92a2af3ea28a522c0553b987abe890. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:32:14Z), 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/TCADE1740111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32ce567993e97c60426db5703ac59ae71811390330c09d8673f8fefc8495092c. 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/USQY51797723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe665e491c2c36869e63b74db826c897ab3fb31cb8145d7e053e290eae3a04abb. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/USA2P1804918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x818a6cc9aa536373b17498937ac4a95cfa5e7db30b10cffe9cf48690dd13da2a. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/USA2P1804919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e5ea2c7dd5aa3c2c3e7a6d77ac47c495e9a577c777a797e7b947503d6400724. 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/NONOA8718124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe275ac74db94a585c04e3c2e7e9d262a868f2d6b356a1031055e806761dca4e7. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/NOA871901110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bf5d79363f815560fdd4cce2d3dbc99bd308740a396deb571ac8b306d52d401. 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/NOA871901170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x827a46e726850b4c68ce25affb47db0e4dea668aa2e1aeb986e88dcb51214bdb. 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/NOA871901200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4932ab8d534df59b16903df622bf07462f612bd8363c34e3cf2c025ca07a7013. 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/NOA871901250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bf5d79363f815560fdd4cce2d3dbc99bd308740a396deb571ac8b306d52d401. 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/NOA871901170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71e6d916a30b8ef96fce2982df8425cb0a8199b2cd84216b50ef55d5fde8a960. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/NOA871901270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8de6964208ae18124c5c01dffabf7c88e38abab22d7c4d0a132aafaf46a193c5. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/NOA872000006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2920813451c072eaf9ce930f4e2ecaff039cfe490db69efff0284e5e94478c9. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/NOA872100026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd18ff4af1e61524e8df0406ed4092ccfe780abd0086a47934bb51de8db7a094c. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:01:42Z), 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/NOA872100107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5924a2b66099056114b93b8e0785457987423efe86d23e8feb6fb8df9351ea25. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/NOA872100121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23022483dfac251785effb3a34327796ef86684a77892e1f8ef447c6e7b4d756. Chain 2 (Bitcoin): anchored in block 958368 (2026-07-17T07:55:53Z), 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/NOA872100106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5924a2b66099056114b93b8e0785457987423efe86d23e8feb6fb8df9351ea25. Chain 2 (Bitcoin): anchored in block 958639 (2026-07-19T01:18:30Z), 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/NOA872100121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefffbb60e2acaf7cf94fb3ec2ab552530556cbe7ae8553dc8eb1f0b656837056. 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/NOA872100141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d012497f786b334b3667068f7d53eb1b28e3ba28aab68d9639fbb1d841ce261. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/NOA872100142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x514110e74c7b696c2775470c5c511db66e603a302c04d6b9a8ef9ac692429b9f. 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/NOHLX1647016.