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 0xfa2db93e238ae55aa8388aca801da2cdaef1611f413847537e64d1e1e9fdc988. Chain 2 (Bitcoin): anchored in block 954131 (2026-06-17T19:19:19Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7b5706df-1e7c-4840-8393-c22f381acd9c.json and https://artists.proofprofile.net/proofs/artist/7b5706df-1e7c-4840-8393-c22f381acd9c.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 0x50b32442552c9492357b0de43c16b323d08e54a3035a613d8d879d22abeebb01. 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/GBLV61611956.
Music Is Taking Control - Oscar Velazquez & J Warren Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x055219e16ed441cd9d8537b32676524034e311ca22e63e1a23b9b9b92fb8d29b. 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/DEH741704054.
Barcelona to Mykonos (The Circuit Music Guide 2024)
QHM Exclusive Unreleased Instrumentals, Vol. 11
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1fc3f2b2185f7feb183c4a3eff0fc67bdd64004b1ee3374b26ba7598c4920e5. 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/DEH742439077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d892db15d2b359b8ea3ef308387cc4a39526fd3dd33a3f936cfc7ee109c9d11. 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/DEH742439078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3edcae02691fc95b7196a5e76391b86feacf128a2c31724877fd3166e4ee8d5b. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/DEH742439079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18912cccb029979656ed38187ea872d787cf9c22355535003f4cce24543f74fd. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/DEH742439080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29bd66e5369ff6945f70e502916c92ca283d107899a5b203d2dc4c61046ac42f. 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/DEH742439081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf465180e2ebb0d951c3304def49ef79c7e292af50dee2dfbc244a3f9db505b79. 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/DEH742439082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb5f29de7765f3b04b1f82f172604d75df337620c4d3e586596d61bfec2ec8e7. 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/DEH742439083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa11d2a9f336f8e027c4f83cfc08c8785a593c468ebf5d6589c7eb3ed4839c9d. 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/DEH742423272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69c29ffaed9466a6f399162f5501cf7904381a52aa4992158cdc96c2f0b4c7ce. 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/DEH742437293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x509486a330f88b4029687570e4946996bff56e096cd085e30fbfe918e26fdf1d. 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/DEH742440587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39338f6c72d60229ccbd5f7143ad0122568c45534e8b1d0ae78157b67671399d. 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/DEH742506522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc5e3da79ff145cc91a8b791ad3498a3919234bb65aa1d67c860a548ff11c820. 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/DEH742507016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0a2d317a6214e1f184e51dbac61b0b9d825c5609e3404032368791a18ad2eb7. 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/DEH742506745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x435d077271650e3190fff33cc8b9f52b24224875dc1c079d7d3d3658c722d4dd. 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/TCACU1672557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x035451ca6eb373c8fb26e9f54a78d9ad4afa031a78390ebe977ce926fd164e45. 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/TCACU1672559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa6db5965e5ea71d4baafb4d1f398e6d6333f2a659038eb23540f2abcb41e97e. 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/TCACU1672565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27a3a722b65b8a6f8611bf82911397687f3891643068ea88bb8d934539789a78. 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/TCACU1672572.