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 0x62444e19e598dbbdd56a5842058f19b68d08930fb044ddae27e63c2c5bcd7fb1. 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/d0ef7bda-6607-4171-93d1-c6979487a2d3.json and https://artists.proofprofile.net/proofs/artist/d0ef7bda-6607-4171-93d1-c6979487a2d3.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 0x2b320a9d3ff3bcbca0c8407694dadcaf310fd25bc28ea9931d7878c0fee0456b. Chain 2 (Bitcoin): anchored in block 957658 (2026-07-12T05:03:28Z), 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/QMFMF2427777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b320a9d3ff3bcbca0c8407694dadcaf310fd25bc28ea9931d7878c0fee0456b. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/QMFMF2427777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c38d8d2d911fa5e1f47e4c2a67950e1ec167b7604dbd0e911850e5747859561. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/QM4TW2559357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe28eecf0b720a7fd9a5f65ce1aa05d54497f227f4053350a35995be4392daf6f. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), 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/QMDA72485697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x707c0e106002524336ea070d28bf11995bd484e1b55b535881cddd88731af6ae. 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/QM4TX2563890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c38d8d2d911fa5e1f47e4c2a67950e1ec167b7604dbd0e911850e5747859561. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/QM4TW2559357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b320a9d3ff3bcbca0c8407694dadcaf310fd25bc28ea9931d7878c0fee0456b. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/QMFMF2427777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe28eecf0b720a7fd9a5f65ce1aa05d54497f227f4053350a35995be4392daf6f. Chain 2 (Bitcoin): anchored in block 958971 (2026-07-21T05:04:56Z), 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/QMDA72485697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf542cb4577677a6e888b5eae548e304d8682d77efe141dd9200c11ec3265e16. 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/QM6MZ2567106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c38d8d2d911fa5e1f47e4c2a67950e1ec167b7604dbd0e911850e5747859561. Chain 2 (Bitcoin): anchored in block 958380 (2026-07-17T07:07:02Z), 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/QM4TW2559357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b320a9d3ff3bcbca0c8407694dadcaf310fd25bc28ea9931d7878c0fee0456b. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/QMFMF2427777.
Fading Lights (Eagles & Butterflies Remix)
Wagging Tongue - Edu Imbernon & Clemente 'Imbermind' Vision
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bfc32a1feea4bdcf59621f9d7ba2341cd0d8eb5bc52f98ec8fb46ac04770d0d. 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/USQX92303883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa33ded44fe00b89197b6f7c2b9e2507df9db37e91472b676a95dcd7b299a9ac. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/US83Z2311529.