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 0x8970cb1aab8620d5f4383d68565c838f5d52a2d39a89a2e3cd8455c2d08eb4e3. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1955f2f1-0889-4859-8ed4-ef262b480657.json and https://artists.proofprofile.net/proofs/artist/1955f2f1-0889-4859-8ed4-ef262b480657.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 0xdfc5e73905fe5727d91173ce94bcbf4f0692ef175470954c28531de4e42d69e2. 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/QMFME1412422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x822144f747e39ffb184bd0af9f13dc036b4b7289eed2ea2848c0ca0bda8391d1. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/ES09C1400050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08400063e0f387f6f3f18b10881398ba6dd2b8398914c36f669e3735d78dd1f7. Chain 2 (Bitcoin): anchored in block 957866 (2026-07-13T14:54:25Z), 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/QM4TX1508260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x822144f747e39ffb184bd0af9f13dc036b4b7289eed2ea2848c0ca0bda8391d1. 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/ES09C1400050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c20d159415e9f94ad7fdf7b13ba9616f892f6d8dd07b0773786d1371eb645a9. 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/ES09C1200502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66002b10c7907d9cd124ea532823bf23ca6c989e210e8682db5b78f3af67fc1e. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/ES09C1500070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb0fa322e429091b0a1cb91726d86ffb1b0567fef3325e7924fd0722ecad73cd. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:09:51Z), 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/ES71G1632275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c48356484daf2a3dff702fa7f47ba11196aa1f2d39be511bf44e5853d079788. Chain 2 (Bitcoin): anchored in block 958523 (2026-07-18T08:54:12Z), 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/ES71G1638689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29d352ebc55bc4a83edb60bd6e9a7f0a10d8baba219a5be3fb2f225a08032681. 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/ES71G1638704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4ec4caecf438e78c306c56c9a5c7c0406cc3fe8908ad81c7312020a30f95bc2. 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/ES09C1800003.
Reggaeton Antiguo - Los Hits del Regueton Viejo
Regueton Viejo- Los Hits del Regueton Antiguo
Si No Te Quiere (Regueton Lento Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a860610e255300218ac51e2f265abf58b0f2d8b9e6b7406451c665ca3f7612b. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZW9K2442292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbbb391f5a0a238bd797eabbf39b4bedd5cf42ba9877c8d7024766ff0746f4e9. 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/QZW9K2472128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0602b211901e9a7e868cd697382fbbefafa5d69167839adbb64ccf18e17a989f. 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/ES71G2402371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f7cb42b9a9cb933313581ddbc6f3d29369d03b1908e22ccb356f6e4f9a81003. 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/ES71G2402379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x610c216efe1a757b8c7baf10ce7021e5b229aa90d69498b71a0ca272733cee40. 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/ES71G2402376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x975c50cb76f6625ff1f9da4fb538e087c6c08d0c30264452d75117e5f1f671a0. 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/QZW9K2493806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9964334dfa693244ef8e50f6f46964fddfbd23f2ab6e9dad29a023f634612985. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/QZW9K2472118.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42334c127d2a70be9713c61699f803acc469f736106e255ec80a4f7178c9b58e. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QZW9K2472122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66dda5cc09dc226968734c55c247603214d71a034a3da5b4b110c96246145add. Chain 2 (Bitcoin): anchored in block 960277 (2026-07-30T16:10:47Z), 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/ES71G2402383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb79ace4cf999961fc42437ab622377667c20ac304e592c92b51ef1d2ff8c8b28. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/QZW9K2493809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc794f187c5e120d261b9509a208d4571e661db31630c61d3f585679b6762ea75. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/GX3Q92090036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1bb3797a3d256b3c6c24dfc0b2b5e118630576e9a935eeb83d24dc0f9779ba7. Chain 2 (Bitcoin): anchored in block 960430 (2026-07-31T16:09:41Z), 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/GBLFP2043988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde6cf09d6ab3d98750c30ecba35ef8b63d170460409a16d789e6ad705bb08df8. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/GX3Q92096630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73d33ef04f34de6818570792c66d17efea070158facd0c5f263dafdfa999e1e7. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/ES71G2337263.