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 0xdd284802c53a86368fd78a72787061dd29f35b5c7f130aa14cc9836a8e6b07d0. 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/fd4222d1-fa6c-4f4c-95e8-f9cc3074f376.json and https://artists.proofprofile.net/proofs/artist/fd4222d1-fa6c-4f4c-95e8-f9cc3074f376.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Samme Vej (Ungdommens Røde Kors Summer Edit)
Samme Vej - Ungdommens Røde Kors Summer Edit
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 0x618fb67f57c070c0c1eaa2cc209855471575f3886ed489151053215ac0d02b93. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DKFJ41500141.
Vasker Flasker (feat. Fetterlein) - Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x749ffeb345c4cc6aad4fc3f942f50b677d199c8ea745053d42773fabd019b384. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/DKFJ41500128.
Vasker Flasker (feat. Fetterlein) - Kelde Good Vibes Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed255213b7e7b0806b74bc2b95a4d4e248a5c034406c6ad948cc6b63efcd72f5. 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/DKFJ41500136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35161d88daca6781cecc0135c4aac53074ca1d314eb8313e07de64bbd6ab0fb5. 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/DKBV71014301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f73f379f7d9eff3e0c8fa1a48b416e0d62dc97f7de1269b8bd7aa20a4ee64fa. 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/DKBV71014401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe45fdf89d3c5b9a5cf04556ef6f026a1bee99c90bcabe0ff12ce3751d20c9ff6. 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/DKBV71014201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ca07fb32436770457ec66f863fcb2e932547a9fbee53719bf6cff77393390a5. 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/DKBV71107501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb74d2f181666fa8d4d9050d573d581e86d99acd439e6804239adf80c6b232607. 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/DKBV71107401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b4bc9ab063d81caf5ca83c2a7cd0ed51b64f6121cc35e44a35f4d0d240a0f22. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DKBV71014001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6002222b30732ffc0c36c58de962eed47c76144dc9ca9065298ce1d26c918a15. 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/DKA451900308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74ae7ba0732a1da644c6b4c7e360a4da8a93251ed6c3f7baaf48c199fc5780a3. 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/DKA451900305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf473600e54193e1f8b04ba62fccb9ea24fc74eb8b7aab489248a761c61868c8c. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DKA451800303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x103fa133a9f27c02085c13572f3f8155a4171b64f1c43b736c3cc6dcd85523f7. 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/DKA451900306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf7bf30e33db427cecd6bc9cfa033f4ee37826bbde65b43a03d04e3841efee97. 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/DKA451900307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bcf7ce081d931e16767d5b8ff2dc1983905713e9d36fea4348f280b7c2e659a. 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/DKA451801304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1640f2b3e25fb0272d0b7b23abc5a4f28fbafeac59f73b8956270e55ce518fcb. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DKA451700301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcf710e696bd0db53195da097e229b0bf337a6072f2a5a0c7ce6761f37fa7264. 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/DKVK61700401.