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 0x0c88701988ca85457af2933555cf36079ec06bdaf297aca1ebf041d4ec16422d. 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/b692f5a6-22ba-4577-bb50-e0dd7eb1881a.json and https://artists.proofprofile.net/proofs/artist/b692f5a6-22ba-4577-bb50-e0dd7eb1881a.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 0x2eb388eb70138d3adf9118df5eee03d6233e19a1b4f8f750e4dbb1159923a8fe. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/UST8K1732662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f57e0d40995718ef2849c0f62d39c391da6febf04bd6e38d3bf79efae88da81. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/UST8K1732663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47a62eef44e607a31ccaa0ecb64b66090189e245f868d35477df648ec6c3b255. 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/UST8K1732665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x552aaa25a597f67c9b29cf9847d06758749fbebb6608974003b835dfb87c0216. 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/UST8K1732666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe108ac77f4987104e6a140dde680d7ebbd8e5d2731d5406c461013c7006ad240. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/UST8K1732668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77091f063e1d0159273ea513dcf91c30bacf9cdc4934f0f309e1cafcc79cf5b5. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZANL1757663.
Asi Chiflaba Mi Abuelo 2018 Grupo la Ley7
Un Beso Que Me Dure Hasta el Lunes Grupo la Ley7
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8567e5e00a9dbbd00118914cc7a3f2dcd20f583b69672f107c8a85cb0a3a481d. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T08:38:31Z), 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/QZAPG1779633.
Mi Motivo Eres Tu Grupo la Ley7 y Jesus Vera
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x167a7dce2e97b95a3c8ca1c561553f95ee0d927017814a882060774fbd745b0d. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:37:56Z), 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/QZBRF1837506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92c25b3fc83699c54843757d6833bd939b47e34b1c3b1432c9d6be5d6f890a8e. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QM4DW1834612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe91d7eaa808e7031ad0ca3ce1fed32a0bf3ed6ac96c8cc6a0b8e5eeea825d215. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/QZFYX2369097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5a2c5423168c49b5270fb53d969ca884d4a7a37869e72eebbf796860239c6f8. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/QZHN62496500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8e802193dac530ef79c3f5c2a875d7a496ec5a83b3a3333a56928b10d5d2df0. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QZHN32447413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51a441d8c614d3e4dc5d072167e17fd8b2a898e22993e69b590c93d1197ebde8. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-21T23:41:40Z), 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/QZMEP2484597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x581437e95609a27cf05037cc132538f4c3c884640dac7ca3ab2b8c7d8e79eb9b. Chain 2 (Bitcoin): anchored in block 956404 (2026-07-17T03:24:27Z), 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/QZWV32436461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x003393ac856b1a8ceb00d0d907e4d484b6012f9854321eb88ddbcd4c704242ef. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZWV32438367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70edb20c855b7f2b6891df82aa545a0e65cacae44ccd587635c00faaa7ba4601. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZWV32462114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd00fc9cc1e395df765143fefd5b2f352f9b72f16b9d331ae52288d960a869283. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZZEC2458145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x489d6736cdc1e5c01f4b825d052bc81f918b3b2fb1fc73747f71b23d0da095a6. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/QZ5FN2596419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac1cb5f2a229d9867c7536f3f232bdd4558293a9edf4c769a181300ff91cf716. 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/QZ5FN2597486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fef61bc8e29ebc33e62b70c7be236fc7b55075245fa0bc6711eb3b6069c95f9. 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/QZTV32519963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea5ecadbf956e099a35636465a9527c034241b4f51b6f7e6f95f2da48589c10d. 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/QZWV32581508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1401aaec1ef5d663c6267914a0a4aaca7e8cb753ea340242cc0e5365cc4fb5a. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T15:32:55Z), 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/QZWV32581495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5388dfb3587b29f48c7f1a94b64b31064a3243c2c99831af13f448fb5717a6bf. 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/QZWV32591083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4365f2da9f85fe5db992247f4670041230cddfabcaf20de6547e4fdd2aa5ff59. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T02:38:08Z), 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/QZWV32591085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe760809421839a2175c54c00816e8b2be90795588460d0da0e661fdc44153965. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZWV32591093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f937cdfe5067dae5b7911cece521ef8e19022d44cb4a85290152d0304a46cd4. 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/QZZ8A2548488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ba84e2a46e88a9f033ae52448acc6b2dd56ffbc4b99f24259daba540f080138. 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/QZMEN2228930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5405540a51a50116a15a3bcdcaa920d145108c56609eaedb927779364fd86a9. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T13:25:57Z), 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/QZZ8A2548534.