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 0x4ed7af017a96d523a033fe36f8383c88cb45b303214ff06776284f45d957ef99. 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/f74f34bf-2521-418d-8909-e196bd25cb5f.json and https://artists.proofprofile.net/proofs/artist/f74f34bf-2521-418d-8909-e196bd25cb5f.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 0x8f490b9e484e879d0bb0e59432719dda735e028f55be9e1f6ecc2bbd7bb1ae27. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-20T00:19:32Z), 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/DKAZA2000207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b66d7563d0257aa756237791b32690d805f39969cab9ca10b4e7a653970e20f. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T12:40:02Z), 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/DKAZA2200109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb33abae3dd60f52a0a6eec196326613a87ff662b8fecf7baa717a2c851bf7ce0. 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/DKAZA2200108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16c83b18641aa223592c8d4a5b30ab962c70981931c6599e5407df5c749c35c2. 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/DKAZA2200110.
OMVENDER (Live at Vega, Copenhagen, 2022)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4b98db402d7de2a520bff24a9603bc4c1c19788bce5ee518a24b01be0db62fb. 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/DKAZA2300112.
HIMMELJUICE (Live at Vega, Copenhagen, 2022)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a29d1b0377db40009855147277fcb19866aa4cebc0e05437028f9257c85b747. 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/DKAZA2300113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd24a74f17cb8b1e5193ddaeb3ce367a87c579ce6b43f187d9f4c60ad83dcc78. 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/DKAZA2300342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24856ba0128b4bd65e76ec8a51759c8599b1d51e6d7f3a2303bf4df0a9da4903. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:16:09Z), 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/DKAZA2300326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a7ca7468ccd7e7041dd71da95f366feb2be109f9e7925c1e0262be1e6093006. 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/DKAZA2300335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x243a43feb1467972424555ab0ec02769d526c3426e0b46ac3e4a32b0e2df32ad. Chain 2 (Bitcoin): anchored in block 958582 (2026-07-18T16:47:25Z), 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/DKAZA2300336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcabb70edb5098b669b60d08561c4d7c53f8ef8006f36a2a769f86699cf79c13a. 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/DKAZA2300343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb53a979387a563e4141bf9c41cb37923c24ed8ec65c0ba585d3862b930c670a3. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/DKAZA2300337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a307193d9ed473abf7ab0d9cc326f33dc5ccbdc2d1cdac836ed8df104346959. 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/DKAZA2300338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d5daf596ead723bb83796eebe94bb357a7ebc954869445feee981d4124c7dad. 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/DKAZA2300339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5185a220397eca52ce943874f79f73fae8ac6878e278ba8c855f083e66a14939. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/DKAZA2300340.
FLASKEHALSEN PEGER PÅ HVAD FLASKEHALSEN PEGER PÅ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89469690b95a842c45c45dccd01d6c6e2497ee78b0cdb3ea853711d69fe5e887. 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/DKAZA2400067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x029c2aa631c7a15d1cd7d3e389bc3cdfb6e6919a4acab0253d34f37757d8e5b9. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T21:42:55Z), 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/DKAZA2400047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2d649fe2dcc27493ff0bcf68f4d23c39b48deb2f517eada6f2be50d9b159be4. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/DKAZA2400094.
HUGORM NEDLÆGGER FORSVARET (feat. Peter Sommer)
Toppen Af Poppen 2021 Synger Alex Vargas
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6961e6f8e8758d328c0713c7c450947ec7e4ae649a67faf8d2d781c18b64aab5. 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/DKADG2100728.
Toppen Af Poppen 2021 Synger Maria Bramsen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a4c4e723bfd8af770ea3ca96aeb17a120f8beda6785e74c52343822c00e3ec4. 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/DKADG2100699.