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 0x91d2bd27e1eb28e855c03c4aefb61dca8d2ca13f812f45e8351d31c7251b8b82. 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/38f3c7da-8f54-46d5-9da8-85060375ec57.json and https://artists.proofprofile.net/proofs/artist/38f3c7da-8f54-46d5-9da8-85060375ec57.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 0xf8809950a61a44bb4630c6874c7f7a24eabb96835a62d8621805fa1bf8f3372d. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/NORDX1804012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38d6a3655379141e951581524f548ec89cfe10dca531aa9da4785cb3e4b92fbf. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/NORDX1804013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99b9db26cf82f19d1789404c008a484360948ccac526a1cc6c076f0fb28fa767. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/NORDX1804018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeae90bd719d90b1363b0ef335cc59e79a5da749eabeb3b46ab98c88df846b755. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/NORDX1804019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf61f5cfb66bbeb17b8e88403e228f461a58e56c1df1b7a9a86fe0d9db7f65c11. 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/NORDX1804020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5288a9ce94c00ae157e61be5405e038dff5d996476cf38860059c07e44c292cf. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/NORDX1804016.
Et Annet Sted / Eddie & Suzanne (Remixed)
Mopedbart - Mystic Jungle & Whodamanny Rework
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7387a9d488abd256d3107307f9617cc864c9ed61010d1f1bdb533c27ecbd3770. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/NORDX2201050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49af14a6a8d6a6a573c83121d93ddd619492aba5ed2cfab113d2862a596fb102. 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/NORDX2201070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11036d29be1179ab2dbaf305307a4ada6b5fe800fb0336dccbb54d477619aed5. 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/NORDX2201010.
Konkylie - Telephones Hubba Dubba Dream Dub
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd04fab4b67a5010790bbf4a30f7fe5783e30e7b7da12198177425880769774d0. 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/NORDX2201020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2aa7ba9e49bb7c345f5f1fe964d62692c304114dca935fe6a10370139d572e98. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/NORDX2201040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8febe491e33bd6da5d4b44aac1fee55f8154d3a6092b75711aced430e00bc82f. 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/NORDX2201030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7387a9d488abd256d3107307f9617cc864c9ed61010d1f1bdb533c27ecbd3770. 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/NORDX2201050.
Flyvende Flyndre - Domenique Dumont Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e1d796d295cb7b28478894aa896cadace901b47432f3bc26310d4d7ce6dafaf. 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/NORDX2201060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49af14a6a8d6a6a573c83121d93ddd619492aba5ed2cfab113d2862a596fb102. 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/NORDX2201070.
Eddie & Suzanne - Eddie C's Motorbike Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb788f094fa61bb34919640f07ae8ad51c6429e854d0759f23fcd012edf3e43c. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/NORDX2201080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3382dca2561422d8347f29ce407134495c5596dc5d7ad255df3d9f991975add6. 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/NORDX2201090.
Late Night Tales Presents After Dark: Nightshift
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f1ac98c3e05cf0750dc65b672d65539e13e2c1eda1270ab3dcbc595981dbc62. 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/AUG901000034.