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 0xec03c37c17d0b5410cba774ba9f21b8b7633e5ceb32189c588d1083af84d26a1. 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/29a048e9-9c14-4d5a-9b69-6cb15bcd8cc7.json and https://artists.proofprofile.net/proofs/artist/29a048e9-9c14-4d5a-9b69-6cb15bcd8cc7.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 0x996b74c0b406b09f17ed530f12b95c8beb336ee36ca000bb70f8df23bf9e7a55. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/ESA011983972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb84ed09171db793a518b5340f923426b1e502498fa221b58266e78cef9aec899. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/ESA012023531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4354c722661c226b3077ec4e90038b275cb05a1a96054ce6c803e716dee751e. 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/TCAFA2041436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x896b4643c68ff4bcc2ef674fddba70a03bac2a2e3c77f942242d7bed18e16936. 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/QZNJV2084023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffa6fbe89ef6928acba2f0c75b12b5b49688269ae7db4f433dacf9c5b6d280c0. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/QZNJY2017159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x729ed2f3d515ef121a8fe9bdfe48eec6897d887e6464a6bfd79c3627b09de9fe. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:01:38Z), 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/ES65E2200613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e5da7f57c8752d9766b94bec83923dd6df5413eb0352c682852263afb044445. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/QMDA72460400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4394cc9d105e17702f5a7bd9f096e1d45dbac0de8103d510c6d56ecd3728cf2. 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/QMFME2433096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dc2f45c69671c288a0f726642f1f496ba78f477421093245d9797a3052519dd. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QMFME2448813.
Entre mucho y demasiao | Bolt Sessions #25
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3f644658e60f319425f39c301dcb9f913520acc97ee114a58afe40654c55839. 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/ES71G1931446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cfbf59444541fa1b5d6295d91d5e1d7ba95a75643aa6b3a1b17b7da4a060d4c. 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/QMFME2180024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cb63c8f72e0d16738318729599e8fb8348e92d5d6cba5afd97f8f6a98fea468. 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/QZN882225654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9abcaf3709e2b31721421cbc3237699356eca728531133d7f4231e59b843ac26. 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/ES71G2138592.