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 0xc06840884bbf06bbb2c66296ebd215d3545cb5bda4e632dc728a7daecf438cd9. 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/783fcc66-0fba-4799-aa91-b20c44bb6508.json and https://artists.proofprofile.net/proofs/artist/783fcc66-0fba-4799-aa91-b20c44bb6508.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 0x63e17235568e0d1d200d8a993386a187fd1dd88987ee15b39e619815d1bf1d1f. 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/AUGBT2316069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1224d1fcda965a48327ad698f193a06249b1468c34ab69967ebf6b5ece026753. 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/AUMEV2167013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d1cb07cd438aff925e3a312dc247eaabd06b5e13c3fa1efb904577d3713038b. 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/AUGBT2214494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x303201e0a98cbc4d94bbfb3538fb660cb38e8d9ea7be2c7b37ef22992676a6a9. 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/AUGBT2214498.
Guitar on the Windowsill (Acoustic Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa39bb47bcb2815ec1ca5063cd5e40719ad6c53ff45d617217ba5b024e9a4d7ea. 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/AUMEV2019848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1b9447d8176bb9570d953414ef27ce6c5f25a9b7483a1a6c52f12ac534ad25c. 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/AUMEV2015096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94ae0a1be44a9a192d330877bc4cddfdeb5dd65ce1e973d63f08af07e2069adb. 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/AUMEV2015097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0676949883e707ecf8c336dc2196f4e2c680fa530a1b820ba55c8d384a608737. 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/AUMEV2015099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8db4c8fd0b0b79c15709377e756e91d4245378c85ea8ff40164cb8ea876e4b4. 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/AUMEV2015103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebb194f6beb988eee6baace059dbca1ae4a21f4c9fbd0fc805ef968a535fc7ef. 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/AUMEV2015107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04b51bb174b7428bbbf8fec9cb485397e51ebf62dd328a9ab366f2403fefe73b. 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/AUMEV2015108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96565937619ce3d056e7546675df446196beb88cf15d94b2bb723de2223a09de. 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/AUMEV2015294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa82c2157dc6b3e3e16a5b66afd27cd24478dc0ad9bdc7de457c67f93d5efcab. 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/AUMEV2015297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7d6247bbc5fe74294aa32468c2a8347ebbd74f72acd125799b81fde2519e75c. 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/AUMEV2015298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb4890a4827621c52aab5b805f0e70c697762012262a85fb0accaba5553db95f. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/AUMEV2015305.
You've Got A Friend In Me (From 'Toy Story') [Ballad Version]
When You Wish Upon A Star (From 'Pinocchio')
Colours of the Wind (From ' Pocahontas')
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bbaab12c72154be89c529255ccf01d848166814799bb5ff9ae255b861b9cc7f. 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/AUMEV2432819.
Can You Feel The Love Tonight (From 'The Lion King')
Beauty and the Beast (From 'Beauty and the Beast')
Alice in Wonderland (From 'Alice in Wonderland')