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 0xce59e6aef4496551cf47e41e5b8a5003a968e50ec58f489fca700196cdd2a684. 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/efc7be5a-fb45-4bfa-9efa-db690a512704.json and https://artists.proofprofile.net/proofs/artist/efc7be5a-fb45-4bfa-9efa-db690a512704.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
John Nineteen Forty-One - Remastered 2021
Jesus Christ Superstar (50th Anniversary / Deluxe)
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 0x33fc9ef8ddd79406b556f67d2912ee37517618f42b6fd9def66f7f4577f5be03. 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/USUM72107768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61f3ace8022acb343d121c7df258a81689e2e5bcb143e257ff562b0005c73c33. 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/GBUM72103018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d4655a34bfe7645eb2e0c0e6cd92a529c209fb216177e7bb564f8fffc355c32. 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/GBUM72103019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b76fdbe879f17284db776bb3e6f7d01701a5b979fdf0527c910bd8b7d42438c. 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/GBUM72103020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0d5eab500d82596054131323e8d3096294231482574dfe66d9785d239ed2e49. 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/GBUM72103021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8dc5110f370f0f97332a60102aee70ebdbb92e796c22b96171aafc2ea816db0. 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/GBUM72103022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc6d52ac5d13e78ccaee703d17c1fd51474d3ec17f392bdb24463f4f215a88c1. 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/GBUM72103023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf183f483eadb38e3ca16b2c9fb583834433d938cc3cde533fb4262be7976d141. 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/GBUM72103053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f81e36b27d22b754374e596423317dc245b2f7c1ec602d0e1550a74ff885694. 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/GBUM72103054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86b42e35b109eefcf89a14455039fb06e98f691b3fc6b89ad10437f903cfabe5. 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/GBUM72103055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd81ce05e83f88c2cc1ec2cbf0954224972f46f0f5e2ba1efabcadccfecf00e66. 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/GBUM72103056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48d7d282c20d3d41fa5db5e2a1d3eb8684e7426719575b0605a2fe848e82190d. 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/GBUM72103057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdde1309274b8d0d6f18f0d8cf19d9ad5b6d92883196587d77268d8c135f175fd. 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/GBUM72103058.
The Phantom Of The Opera Symphonic Suite - Pt.1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x870ede8551bb30f5eef1c3e8d360a27dc6886d0fde17a5be8c2aa184e3f869f6. 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/GBUM72103070.
The Phantom Of The Opera Symphonic Suite - Pt.2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf6fda42c2e73ff5b37d6e00241f56f26bc9d1cb19a0bd8b76144d76ac2d489b. 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/GBUM72103071.
The Phantom Of The Opera Symphonic Suite - Pt.3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22318c5a936c59c548877d96156482318c2eeaac01b42309e8a59b1bd48fc46c. 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/GBUM72103072.
The Phantom Of The Opera Symphonic Suite - Pt.4
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d52e3f7e43a967865b28ef6b8e7f6900827b1d2e51606e38faa17e22f5fe32b. 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/GBUM72103073.
The Phantom Of The Opera Symphonic Suite - Pt.5
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd79cbd2d3c126f539864ef990f706775a7f6dd9cc1412e28ea28f2b0e6b6d0b1. 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/GBUM72103074.
The Phantom Of The Opera Symphonic Suite - Pt.6
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9fdd6bcdded4be38daefc089824043b6e97d98c4349df0bc2fc1e3b2e58ec2d. 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/GBUM72103075.