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 0x4b92500e22cba0a7f73662850036ea38dbc8a27fd94c43b03a99cb715608240f. 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/83785711-936f-4d97-811f-68b191918fa1.json and https://artists.proofprofile.net/proofs/artist/83785711-936f-4d97-811f-68b191918fa1.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 0xd4f745d3e6e0888b79e4beeafe79a1b7b7b2b85116624871d0c165a49305da0c. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T15:01:04Z), 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/USWD12112148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7803b14dd75fcb7b4f7f6c0031539c00816922d2037ad34998611e4f59b20617. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/USWD12112151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x652a35d596c214b1b6b9470630b0f41966aa7b89d34a8e95b956b9fd0bd782cf. Chain 2 (Bitcoin): anchored in block 958714 (2026-07-19T09:51:44Z), 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/USWD12112158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9726f3187483aea7bc4c0fa2577e366e30a6cf4c6eba3e1503c3857ffd84018c. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/USWD12112159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4e5e70c9d986f1291f9f6b844cf83e286e529301f25fb1032703b8172b2c493. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/USWD12112160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x333f22e2e6d67444e6642a2b0839fca1c15da50af1e236a304c59b241a2aaaaf. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T00:08:04Z), 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/USWD12112162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccf3087500c83d651cac5f872b729072a6394a628333399dce863e3fc0d32143. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/USWD12112166.
Dug Days: Carl's Date (Original Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12a75007eaa5b2d82cbdcdc6cca008d7f95e5e1dd94c1fba05c62cea25304672. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:00:54Z), 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/USWD12112142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccf3087500c83d651cac5f872b729072a6394a628333399dce863e3fc0d32143. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T02:16:15Z), 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/USWD12112166.
Inside Out 2 (Original Motion Picture Soundtrack)
Funiculi Funicula - From Luigi’s Flying Tires
Walt Disney Records The Legacy Collection: Disneyland
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58aa91694e899cc4a21c2af301a103fa1479a47617dfba91e977a277c2849a76. 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/USWD11365456.