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 0x68f8f4b32c2fc8742cb203305fbb70f4d4103cbb0f212949afa665df1c4b255f. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8811dd9c-60b9-4882-8967-d0430f8b4bb3.json and https://artists.proofprofile.net/proofs/artist/8811dd9c-60b9-4882-8967-d0430f8b4bb3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
El Son Folklore de Guatemala. Música de Guatemala para los Latinos
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 0x35a7bb164a75fc1393139ed8c077a2a55102a09e13a5428d22b26ba847ae4c4f. 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/GTA010703161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x334e08c309db2eb98e343406676bdcb473245f4a5a26447b91299821ef663128. 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/GTA010703162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7322679a21c0eb16f127e62ecdd0ed9c0e5c0d502278d392e98c243c271b7cbb. 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/GTA010703164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45e81c80f98941143f221c41ae1e95cdf7a6b12dd3657af9b4bc52dcff6f18ff. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/GTA010703168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x754e759c9d3b4d55579f43b879cf023dc0bb24bd47c277d55eac5642a42b090b. 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/GTA010703169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3ca941ecff566a85056e31140cd51ca637a4c14551a394d54268ba3e19ac6e7. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/GTA010703170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4050def17be5fa6079d7d13c729da6776aa5cd7b728e80cb41473ac3bc2d18d1. Chain 2 (Bitcoin): anchored in block 957253 (2026-07-09T03:08:40Z), 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/GTA010703171.
El Son Folklore de Guatemala para los Latinos. Música de Guatemala para los Latinos
A Ti Jesus Nazareno del Hospital de San Juan de Dios
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bec4d525af1d73915187d2177ee0acbd71265fc27c246d3394725e76cb36f3a. 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/GTA010704255.
Lagrimas y Tristezas del Divino Maestro Justo Juez
Bodas de Diamante de la Asociacion Señor Sepultado 75 Años Catedral
Carmen Hayde Vicente Gonzalez Excandidata 2001
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56d673e87ff71d946d7601700b8a3821fe5068ccdb5e1b0b3799cdda17894eed. 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/GTA010704266.
El Son Folklore de Guatemala Vol. 6. Música de Guatemala para los Latinos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf47199ed0dd4e6924f63d2e83f50b3e04c8c64262cd0f043126509b0cdbfa173. 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/GTA010703910.
Asociacion San Crispin y San Crispiano 2000
El Son Folklore de Guatemala Vol. 4. Música de Guatemala para los Latinos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02547e5a1b6f7330a38f16e001c2fb1d14a43c33997c84cd7005c64d241e0ded. 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/GTA010703246.