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 0x9af76dbb4c619dc304c874fe29370e2412d0e4a9330f8a57df59caadbfa9d89b. 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/aaf2cdba-b219-4770-928c-db48a49930d4.json and https://artists.proofprofile.net/proofs/artist/aaf2cdba-b219-4770-928c-db48a49930d4.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 0x90a75d40edee6a1cdf37c84b46edfabfa4b66beb243cdc28a418709f0c35e669. 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/NLGM12060700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa1d7298a2bb8fea9d570171f4fda96a546ef54f1d97966bd73c23bb1ff3b7fe. 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/NLGM12060701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab84217635d4214d0ec04bfb8d5f1d1e73b3f2376477ad5db890ab3ff490ce88. 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/NLGM12060702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba75a4c3ea7f787c71f0570d9c20877c650f221b4cad3adf42fa3cc854d258a7. 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/NLGM12060703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf97654f0ece42f8f963c21248c5041010d4342c599b8e4b940c52940b151c98d. 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/NLGM12060704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2781b4df3315f7756958bd93b9ab207a4f1382944344eb1ea7241c5c7f633aa3. 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/NLGM12060705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6218240a5523f867f14af3d5e59bf543e75d78756e8f6d9d10beff7edd4e76e. 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/NLGM12060706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7459e34a06fe72223693fdc10c50bb107ea2c6d13d626607489e0bc261cb817f. 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/NLGM12060707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb6fa0b8f09339b4a23d277147214fadef28f5f29c1098982f205ce8f87ff141. 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/NLGM12060708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83d1fc915c230d0d69aa5f9fbbd55e0b351de999b3a07f849d5e1560db48fc27. 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/NLGM12060709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x023bf666ff8a839d021b807f550516c26dec4865337905633dae5f6461acc275. 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/NLGM12060710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42970ab710bbe7177626864af4424d5c9d4e517f8369b60fe0b57e48d1ff19f7. 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/NLGM12060711.
Leikkiminen Meren Rannalla (Luonto Kuulostaa)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac817ac575044a0e384c7ad226242003e10e2d6b11ed353c2de4047915e8e2f4. 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/NLGM12064427.