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 0x227848e05755a4dcc0747b656d05dbe4965c523c7bc0b67b10c3dbf847618a12. Chain 2 (Bitcoin): anchored in block 953791 (2026-06-15T13:40:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e0187e97-ea22-49fc-95a8-bb96fbc95cc6.json and https://artists.proofprofile.net/proofs/artist/e0187e97-ea22-49fc-95a8-bb96fbc95cc6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Luk Op & Luk I (fra DR Ramasjangs ”Luk Op, Luk I”)
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 0x0c1477c9bbe74481eebabf7bf109536820d23914dcaed62ecef763cc11b59b82. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/DKCA41903701.
Venne-sangen (fra DR Ramasjangs ”Luk Op, Luk I”)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cdfad1ae522a6bc5e18a569e9c8ca8254cba6b8c45a26121d5ecb4c417d0334. 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/DKCA41903703.
Fødselsdags-sangen (fra DR Ramasjangs ”Luk Op, Luk I”)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8815636b90de7536bfb235c026dc97270e3da29b8397f235c026dc1a514218f2. 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/DKCA41903702.
Sove Ude-sangen (fra DR Ramasjangs ”Luk Op, Luk I”)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ca61b912ab446f8ae5f55f46e18ce0c4bba96430d70575ce9f0c800192732ef. 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/DKCA41903704.
Sig Pyt-sangen (fra DR Ramasjangs ”Luk Op, Luk I”)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x176d5276fac26cc855e460d8ba59ba14e99be7957616a6ab492000b8c61c6023. 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/DKCA41903705.
Genert-sangen (fra DR Ramasjangs ”Luk Op, Luk I”)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x910865030e169578a86838d2ef5f814dbdcb50c5382545b7eb730b4e0ae431de. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DKCA41903706.
Krudt I Røven-sangen (fra DR Ramasjangs ”Luk Op, Luk I”)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xced10e5a7a7cc21c888bb3327ea7fddb3c0de0ffcbdd4ba287b8d6db5bcecc26. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/DKCA41903707.
Farvel-sangen (fra DR Ramasjangs ”Luk Op, Luk I”)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78347889bbd1cd011b514deb6deecf42f465a57ea53752498a797201057b5889. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-22T05:27:43Z), 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/DKCA41903709.
Søskende-sangen (fra DR Ramasjangs ”Luk Op, Luk I”)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e13eba56aa15aedb2f1bd604f933324e99ef0e1ad3481c71670695d42ff5364. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/DKCA41903708.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch