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 0x2f7c4a16dcf8a029dd4d6dd486b53a1fb02b3646249226d7569b6f5dcf5964f8. 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/ddb935ef-60c8-4b72-bb20-6aa4f775090b.json and https://artists.proofprofile.net/proofs/artist/ddb935ef-60c8-4b72-bb20-6aa4f775090b.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 0x7490d77508d6cfda0ce0b0151c687677774aeedfe7e778d63a32251a42158f5d. Chain 2 (Bitcoin): anchored in block 959052 (2026-07-21T21:45:45Z), 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/FRX871540038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6b0c14b82e6db46d1024b071846fe1ea059f56191f93c9feadaafcc5e03943f. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/FRX871540041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb99b0eea9d292fd3408cfdafd0e6db24a495d5dda6da9823e6f273921e9bb16b. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/FRX871539998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc093701e1813e6286163e5a7a1a9c6d2e2099c398997b0fc2d3edad0e379cc9. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/FRX871539999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x015c95677c4e77bf08e04343138289aacd8bf3670df0df38de4d5f4ed39aad18. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:08:10Z), 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/FRX871540002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a273fe35ca1a4fe22e139a6be578db2b1a8c7027933097536d4df4aa1e39665. 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/FRX871540003.
Proclaim! Songs for the New English Translation of the Roman Missal
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda34e85ffecc159f474e5adb19c7c684836b8f08fc33f7f7cd64aacf63d6cd0b. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/FRX871540156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5295d8aae2216c284a535cf106758e9b0e52b01647c59cd62efb0e9c1fdc03d. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/FRX871539972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b727b44ebc7642248daa5e97bfd4ec5781b4349ae2d6f38caba62a015cf543a. 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/FRX871539973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb772dc8d412f408d104c40c6a57d9025f97a0eee8f592c0a0fc56e255526dd2. 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/FRX871539974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15d160a15d0dadf73a986f04441888e097933adfae4e3d38cc70505248125cf6. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/FRX871539975.
Behold The Cross (Traditional And Contemporary Liturgical Music For Holy Week)
Ignacio De Loyola (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe23975698df84d1934fda6df31d3e1db73ab0fe1d527a44714f5015060bf3a80. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/FR59R1679063.
O Consoler Draw Near (Biano da Siena (1434), R.F. Littledale (1890)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa92f9c7fe398b35ffa11dfed9299dcc350fe90804b293486ec4f82aebaccbd9f. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/FRX452326219.
Acclaim (A Mass Setting for Ordinary Time)
Acclaim A Mass Setting for Ordinary Time (Instrumental)
Gifted to Give (Songs for the 500 Years of Christianity in the Philippines)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d7e98ce58cbe7774ffb57bceab6d3e51b621143f5f80dfcd12d397068ce5e20. 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/FRX282129807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd8fdfcf018f91c3af939681f8ad3b027c28630f5c0a2360ca82b694d13fb65d. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/FRX282129808.
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