1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x0b61d5d54c30c4c5c9af17e5205de5b73f25d6d106dd254e226a08b6edad3e88. 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/86d363c1-7f04-4048-a5c6-a35bb2ee39c7.json and https://artists.proofprofile.net/proofs/artist/86d363c1-7f04-4048-a5c6-a35bb2ee39c7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Barcelona Nights: Romantic Spanish Guitar
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 → block OTSBitcoinBlock must exist at that height 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 0xf1f1159c7c7ba056d010be4d84e14e647879384fba7caf844b73988b0c9d4bb7. 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/US4R31303740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dd830f11d7d743a1a966e241d0cc21612aeb86e4210102118c712091a6ddf4a. 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/US4R31303747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16981110429d713e046a6890df2878b3d63464e2c8ce383aa629ec2d1ada054c. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T21:38:10Z), 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/US4R31303749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x410d8b97fe5f2f4bd2dd79617479307d75a6336a4e85ea63b81e562d5e3f9bd9. 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/US4R31303750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecec7998a26c2998a96acc20de8931900a345e353720f017ade7d6e39c1ba87d. 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/US4R31303752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cf690a903ba3c36aaabc8c1e8ca53f234aaf65d47a3bbf0ef446b05c8e590f3. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/US4R31303757.
Samba Carnival: Cool Sambas & Breezy Brazilian Rhythms
Noche de Pasión (Night of Passion): Romantic Latin Guitar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe84ec320ee71071434f599e096fee8de23791551a1c610ce076a3376fe7f4967. 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/US4R31303751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6de62ea311e516748d6ff8db1b45f73f30d593f3b931a8076c97343f1c00c011. 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/US4R31303742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dd830f11d7d743a1a966e241d0cc21612aeb86e4210102118c712091a6ddf4a. 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/US4R31303747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9fa3a1d40981b94b531cc7243b25fabc0132dafd7b8630523323a0714af1175. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/QMUJA1410869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a2aa19d65102c9c6f1d538a695257f2ce26f81f6245fa051c7287f48de7f9bf. 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/QZZEC2318689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b986dbe4b7ea1041171038377ccf0f56db1ce0ee94f347e4ce3eac30643e86d. 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/SE6QE2407179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83de5ec897fa16ae8c03d3c5a72bf97e4cc1b159b6b9436294e91c3520cffed3. 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/GBLFP2460473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd066a845bfdc12e10d02fd9781de7f86337c1c4998ab1454f8e3818a65c85646. 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/GX53U2417972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8499991b5ffd0e50031f6dd30d9458db9e003f8660d8196f7c7641623b37cfa2. 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/GX53U2417975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4ecefe134c5d77ac6f9d22726498ee3d813cc3abda0e85ae2d36a31ce69abbf. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T14:12:47Z), 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/GX3Q92580665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c1f4577c585ae105d1c4dcde19c709a0aacc5ec310dbc97d5d02b2e4d2f8bab. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/GBLFP2521164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x496e21879194d54b7ecf10a11b56dec7a96f715bf9cdc248af02c0864925f89e. 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/GX3Q92407846.