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 0xf3f9dbac6134b214954166d161d2add5f67b91bdfdac0a062e0cb50e30284eb2. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/27c23d3f-edb9-441f-b1ec-633f814bac8f.json and https://artists.proofprofile.net/proofs/artist/27c23d3f-edb9-441f-b1ec-633f814bac8f.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 0x3fdb051ff27885024179481ff98b77048f2f54e247a6ffde65832d7c105f0446. Chain 2 (Bitcoin): anchored in block 957892 (2026-07-13T18:21:16Z), 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/QZHN32286071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9eb5a27715a87c0aa4613a7aab0982a97320bcac716c62d9388ff95e0b917022. 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/QZHN92204659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37bf5ab8e940564bcca3cda6b85d4f1a726c342a85d7b6fb09f02ef8852bb167. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZTAW2268632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f99e00b3ad8ef188b1fa3e095d35c38a4988af8923e926839fa13264bf0d541. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T21:05:52Z), 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/QZTAW2268633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x408c464f7f31c5470a63eedccdd1fcdbfb195055ef254f5177c42f4b54d2df9b. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:33:46Z), 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/QZTAW2268635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9279980452e94bb8149cd9265b782e073275ad6e8231c91a36a0ed858fad5b85. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZTAW2268636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb021f55bbc371de38733a296bf175e9987d775ee070f86c15245153a1f2c1aaa. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZTAW2268637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb03d5205ae28837e1031e95abc07c27b409d4540446d7de055dee4ba6cdad695. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZK6L2396155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33d8ec9bb54c5fccc42075ba7b5653c4fd17f81aaf155cbbc861a743229392dd. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:25:29Z), 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/QZK6L2396156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d3cb0f21f8025880ed2f5a1ec8fc10a5bf7fd175378d5dc8aaf8e2f791692bf. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:09:44Z), 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/QZK6L2396157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x684808e889ce515192b15d0853d49522cc57427d0424f5ccceeb40a9bb38d4eb. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZK6L2396158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ddf4f09da473d34e6c75e6069cf5c234ab2ef8e8c96bc59c7abf254fc23a54a. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/QZWFF2303650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x270ed614c991cf10ff4624fc159ad80ce80b12d253e4c6782f844fd386e8b6d5. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZFZ22457125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xceda34344222658d59b0e2fc06e9bd71b36af8de37884c6912fca6e9a9933efd. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZDA52432433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09ebffbf671a1a797f10d055b8d3e1213df3e9b802e5c40c996f5818d9c230e8. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZES92452911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x270ed614c991cf10ff4624fc159ad80ce80b12d253e4c6782f844fd386e8b6d5. 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/QZFZ22457125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfba3d4cad9eb488b0829b9ca1917481269786ee32dc4ecea49cccc42d65c98a. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZES92452916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2a1292e07c4f1a5c8b8238973a1f6c26d65ca5276aa71b94f2b164d30ac122b. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZES92452917.
61 HEARTBREAKS CLUB EDIT (Spencer Light Remix)