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 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 0xe2902dc145442d41e4e9a96d78b5bc7b68c771b886b6129b04848a2c1c52f007. 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/2eeca2ac-7561-4fe2-98ca-d9adf59e30e0.json and https://artists.proofprofile.net/proofs/artist/2eeca2ac-7561-4fe2-98ca-d9adf59e30e0.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 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 0x9909dfa633c708923333983cacb148106ebbeefaa7fcbefbfd627118e2b48626. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/ITSV01700473.
From Jamaica to Brasil (Paolo Barbato Working Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe90f944e12619718272337f337da31f68765d9cb61380758c6b18c160ffd0ba7. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/GB7GV1834103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a501a1eef8f0991fc39ab60742c0c6e235c42940e635edd9c05ff4711f5ab8d. Chain 2 (Bitcoin): anchored in block 959355 (2026-07-24T03:24:16Z), 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/FR2X41919921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab29a4e906b30d2407aa85fedf288f5d3af2e4adf0721353d1f9133fa8390d72. 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/ITMKN2000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe013a446fd122cdbb9d6a8ccfba5c705e0a975fd260f0882924f58c9be6599a2. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T10:57:35Z), 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/FRX872021521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x478abb96449c839db0d6fa6ce0c8df646207144366c01bd7f4347a39b1bc669a. 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/FR2X42167021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb94b8a3e3a06a296d58534b830a390543d8fa8f50fbccb654679d69dc682d9d0. 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/FRX202121331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa742c29b08c34f026556dfb850dd6f5b37ee61b361414e0a90002342597496ed. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/FRX201957233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e832e5cd8ce4444c0182e469c2379ad8cb720bb126c88dab835ef5b4f0e9310. 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/ITUZ22500006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee6d01e69b906e6e1853496ee73ad050a101e692e5aa33ad667229771c42ac42. Chain 2 (Bitcoin): anchored in block 958816 (2026-07-20T03:51:05Z), 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/FRX762586419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfae7d4434676be0399df55370e61e1b3d72213755ea661f96d8619fbba137480. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T09:11:53Z), 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/ITUZ22500019.
Red Tribal 2023 - Silvano Del Gado Remix
Red Tribal 2023 (Silvano del Gado Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x626c890f6743af93b29cb07948ecaf1dfc0b1813752cdef1b7feb59a04642afc. 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/GBKQU2344159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c4477da2c45e4be59bdf53d8f43dbc45fee8ba9ed3c1b4375d4cdd05c0f107f. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/ITBQ62300156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05207b97c5eeddb066ef448c09f33f9cceef28d3a8ae6ea77beb57be1c221496. 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/ITBQ62300055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb188843930ac9e3e96b6cb1ba4e38f638ad08629d9fab7be66794296fd3816bd. 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/NL8FJ2300058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9de5a8e9bc85de304c7ff9243898c66108949bb9f6f25155ed17b3e933c25e7. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GBKQU1872870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a5157ebc711f3a41267e74344ba2d8c1d201dcef5b93d9113d24d5a3399463e. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/GBKQU1776952.