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 0x9a0910d2f1c80784acd75bfd0e06439977d559e6020b6de92cb08086220286e7. 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/974469ed-d0e2-426d-aa0d-d3147d04f9bd.json and https://artists.proofprofile.net/proofs/artist/974469ed-d0e2-426d-aa0d-d3147d04f9bd.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 0x0275d64aac4e8d5591c54c0b0fe97916fd1b1d63a4f658a67c42fa7af7e6294e. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/DEQ022284547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb0151864ca9b2ed8e8178e348674da9353728434b4c836c39875b80e2f2ca82. 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/FRX452423826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71563474f86af053c07ffade6f4691a462ccf79a1e8bde251b4be96f1a3e5837. 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/FRX452423099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x378d51012fd506dcf2bd92c69355c11cfc064d94f608bab4c26389369522ec7e. 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/DGA0M2326314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2095b1ecdc4638ff9b873a45a41174b0f67c9955287015c0ea9815fabc723dab. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/DEQ022380726.
Far Away From Everything (Bastelbande Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19f0f364fea5af1fb33d878bc94559f230cf34edd5c7f520eb7f896dde9193d7. 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/DEQ022384411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x378d51012fd506dcf2bd92c69355c11cfc064d94f608bab4c26389369522ec7e. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/DGA0M2326314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2095b1ecdc4638ff9b873a45a41174b0f67c9955287015c0ea9815fabc723dab. 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/DEQ022380726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0275d64aac4e8d5591c54c0b0fe97916fd1b1d63a4f658a67c42fa7af7e6294e. 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/DEQ022284547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb76a1d1b1fa77c60dc03fe86bea02e20ae796f3cc093c239874d5e6ce4f78a11. 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/USANG2220854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf6517c4e9f162b20396e7c810885e33f7cd97701ab36d4296a87b1d544bab4d. 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/DEQ022112272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x875b3de4db47c66f59ab56b18e8caaf01d91c0c2c2520cb00314253fa75363f6. 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/DEQ022004031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c6d67561823ea580100f88c28d95f1ee05b55778fc35acf299b6565709c83a1. 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/US3DF2019118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ac9ce8c0b4a4e56337cc689406ca322bb74c5c4031d61dec7b060bb3da70791. 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/US3DF2019124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd846467020f7d370a974253939080ab2ea46fd1f6e221f579b82bfbdb56c36d2. 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/US3DF2009849.