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 0x6755f98dd6b0b3e713c927162e4c673041b15fc2742dc6e91e2e744f7aaa101f. 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/95fa68a6-4a80-401e-b271-9d69fe02d3eb.json and https://artists.proofprofile.net/proofs/artist/95fa68a6-4a80-401e-b271-9d69fe02d3eb.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 0x144f063ff6a8ce74df638f46c52f9bd755b3e72caccc623291f4c9e65c28f24a. 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/USA2P2242895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf32454c22ee38058ddf3c449be8879b71ea66fdee4c36a6b519951ceed26a9cf. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZMZ92370825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb71506fabf41c97ea3501f81a39040075c234a9e9725c0f38e17b5940a7be9e4. 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/USA2P2330515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cbdab2e6a893cbef367fea2c1c3b0920e43aff1277d3db9148a2bf47ea4f46b. 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/USA2P2234587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe11fba116c243527ae35f7eccd3a979f902d3ad2e87f92848873a818771dc745. 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/ARIXB2100499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22da676b3d080ced1ecd64785a7124c76f130fab9ce6e19db3bfe5bc1658cf16. 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/QZ5AB1977025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x048539355bf0e63b02886ea2eb104b013527ae9caa65b8a1a3fc53cab098873b. 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/USA2P2409462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77875c0374cae67c8d4050c97ecf6a524558ab84305257d777eec036718c3670. 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/USA2P2355170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb71506fabf41c97ea3501f81a39040075c234a9e9725c0f38e17b5940a7be9e4. 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/USA2P2330515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a2063bcae0e35ad96994d3f483da9f638ffcbf656de52ad6a6cbe7f6d0742d8. 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/ARIXB2205968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cbdab2e6a893cbef367fea2c1c3b0920e43aff1277d3db9148a2bf47ea4f46b. 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/USA2P2234587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb1c30584ffcdacfe6a166377197fff10cb152c5a8302359cfcc399860ad2a96. 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/QZGLS1984979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ac1fe5c0f9e52d87c6d37f5d14a09510095545864f3befb53166740150473e0. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZ5AB1977128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda4a05c50ff5fab8750168a3e20caf19c6c104c3533c47db9b5f1f451b945a92. 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/TCACH1579717.
Rap Chileno el Sur Es Hardcore Godlevel Enfermos del Rap
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4fc0954599c19e57a7fdca7c9a99c242be8eb222f5368256700bfdd98d70720. 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/TCACH1535386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca7ef09527dc3904e17d253adfed51967f0c51add3957240ca140e2a424c4f69. 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/TCACH1579727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec6e3e8f6266d1812b153b85a129c554b95de4bd23a8f128fa99b69bb8fd3826. 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/TCACH1535379.
Enfermos del Rap la Enfermedad Se Propaga
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6f1c0a1a7df50aed863285472b5d3095c10c9503b0067e7351c361efe8d0bcc. 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/TCACH1535411.