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 0x139510b24a33089dda1a1865a295c86f1d1d44dca0f0cde22ce049d680f1b289. 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/b140be1f-637b-446f-9779-a3966008d931.json and https://artists.proofprofile.net/proofs/artist/b140be1f-637b-446f-9779-a3966008d931.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
David Phillips present 7 years Global Ritmico
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 0x7dc9323cf2b69b5a41c51cbabcf983643cf29176debdef74bbf4ee7e0f4565da. 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/DEH741805863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4c09047a6efe60e05b71c84aace2cb69424cb3d8acf3f6fe326e12fe788a9b8. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T08:31:29Z), 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/DEH742157399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c454b9386f2cd0f387ff2f89b57501db625b17e4d75b3372d2a7816e9de35a6. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/DEH742302982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x821575688868caf779aabfba3c8af7c0d1fd7eff35a229e1886d6e48036c0889. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T15:10:57Z), 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/DEH742305335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd27057e4dd056245dbd55f76e9624763ed8f4d68b170dd2314ea55c8e3077ebb. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/DEH742315703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd89af6c15d5f5a09c92508a3d57b5f43bf304d31017cd11976d91392a3c60ee3. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/DEH742329876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66e68df11169bf5e58944c838f34ec9e674e74d7bf15e10e55ae01527aa52953. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/DEH742424138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x839b072055df2244e9c9d9a2e2707a3a589aad79161a8f59834ea815c1e50efc. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/DEH742503521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee1bf5213dfbdfd1e14a98118b457d67249fdd9b9a7f74ffd2fcb15174a95a70. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/DEU672500209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff4a72da45e9f7190e245fa69dc253106b7e4c41afa3bd122989cf1e96014fae. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/DEU672500210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa76adbfbb00a25a949289c9add11f36abe1592dc009baa0b23e11f1f09301370. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/DEH742506447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b0082f0ef8f99edfcf3a2fda4ef6fe15a92b7b8eddd5b82d89e3e210e69e65c. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T02:31:22Z), 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/DEH742511661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b69fff6ac7100cd721528e335a068e4287d83730b08bb3aac4963111b7423c3. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/DEH742517984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5bfc69d9e6c6f57c3335365494687ff8975b2737727aeecc414c4d7f8f1f31a. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:55:26Z), 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/DEX042500042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65f407e7c608f4886034a1b164b091cfdbc8f4338d02c95438ce1aa874894886. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/DEH742524540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4a48049c2ab3325576b709d8fc3c7112ff606017ce4c6dc4e3bc8e8e50070f6. 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/DEH742526364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0275622064429624fb5ea057d3b50afeb83e152c36f840693945c6f79da3881c. 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/DESM81700015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf53518f3cabafeb3954850b2e3750aaa3f9e6d05e99816b2617475839b039bce. 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/DEL712000174.