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 0x93fb474e01b9b8dd7a376927aef4cc0dd81bdcea259dccd46cc4c10aa5d41095. 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/e3c3ffc5-9d92-4aa9-a00f-8e6a2c5db173.json and https://artists.proofprofile.net/proofs/artist/e3c3ffc5-9d92-4aa9-a00f-8e6a2c5db173.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 0x658af7de6b389dc0cc8ddbc69ce7b7b149c1e7f7c02fdf4b19a198d88d3480b7. 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/TCAGB2249222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6c75bea555ac0cce1ca8a16dd055cda387b3eff6bdab5cc6f02f7de96b34f06. 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/TCAFQ2118995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72005419ba6d241c7b44f0f661b78544612f9e6e0c7cbc9b1c71c34126a7ff8d. 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/TCAFN2188964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b52be979c604e83e5ba40ebc6f766cbd81cac47f911c2141b19d6e73abad3ff. 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/TCAFM2174596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x466b6fb1a2b635221addd2cea0d192e522f9b6a419813eefe52e8a25a1a7e7e9. 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/TCAFL2199562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x928e9bf2a0677a7d219247471bcbd5603bf8aba64ab525d3863a5a84a60a5867. 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/TCAFE2026596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06791ea3a08667f852439f4d25c38a597788751f22db3e954909ddb533ce5d2f. 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/TCAEW2005933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5c1407097029c7a5a2d236ad4db54c2598eafbc15eb5bf43b2f3463c222a495. 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/TCAEW2067014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6d053cbcdf6c3313ff423ba543841e842e4999dd792a2e6b8fb917b1e4581cd. 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/TCAEQ2030378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf416f083c6d57c4cc1a34ba9df175db94d4b27c3f27cf0ce4b3cddbfd24f28f8. 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/TCAEN1933875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34ffdf29809d5dfab6e825b5e98752f42b835c04c0227f66e7c2a4cddb0c7074. 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/TCAEL1989482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x311caaa5add8e82d5819e3dc8e5340189bf3d7d556ad6085a762a6ce6cea8167. 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/TCAEH1903678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9eba13ce66d07d26366c9d1633821c4b4405343c2a5f0fb4e6af469962f6d6a1. 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/SE4JS1800201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0cf54710aceef6fb52d424bc31b3b5ed7e10ae8eb9ef80bc484ee0cd23d15c2. 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/USDHM1704532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x015a12c23180917c0fd03b357aa2721cc9cab37884ad8aa73e82b1ff7f97abb9. 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/SE4JS1600801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x058f15e7ee048d9182ae072bcae73ddb1cac3ccf927012af06ed201227f43ac8. 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/USDHM1414537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c5794319b9704423fffbbc58512dd61e878c4a7f3abf132f01a1d7366921a43. 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/SEWTC1400201.
När sista dansen är slut (från TV-serien Uti bögda)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cf597f542bac1489084f49d72108c0079353ad1e9f91ed38e4bf797e4a86bfd. 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/SEVSZ1603801.