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 0xa60957412b5f5e1ab0c8ec1eaf5009168d7ff1f90bdb27477b06380c3ce840ea. 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/b14a1bcd-58f0-46a3-b04c-00d0fdd56099.json and https://artists.proofprofile.net/proofs/artist/b14a1bcd-58f0-46a3-b04c-00d0fdd56099.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 0x8c1ba7de44578016c953352b837c7c7d2f0e777d28aaa3a8e61880ad50c1f9d4. Chain 2 (Bitcoin): anchored in block 959018 (2026-07-21T16:56:49Z), 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/GBDCA1803388.
Vampire: The Masquerade – Shadows of New York Soundtrack
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8ee1cc81a76be76ee39caa818e643bbe16d085e758968c8b180482e920feab1. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/PL98H2099001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbefe91a415431f9d15f13b5689f6d810a7ed2e3b2b40e4011aeec67022665251. 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/PL98H2099002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe994f94f4b53fcf91c08afc835180409fa0c5b0b755c01bb9008d1ee50db3ac7. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:54:29Z), 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/PL98H2099003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x827c2d3f754d8bca8145603df12edb4d0b768a0ac3d2d3551469eba22b45db0c. 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/PL98H2099004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b7c7417538afb6ddcb73e43e136b0c26d83d1b101df759c557a58cb285dc618. Chain 2 (Bitcoin): anchored in block 958680 (2026-07-19T06:04:14Z), 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/PL98H2099005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fcf46f80dbd9010d4f7870990e1c19c58d679e16d2f60c6c9cdc6dad0cd2197. 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/PL98H2099006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd03e4c6ea490dbb643a4272c0fa3c322235aed443d56086ab689030f183e1ab5. 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/PL98H2099007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf15f55d1e4683877c0845ab8dc6c039a862b7086b05b48f4b4a8299725176720. Chain 2 (Bitcoin): anchored in block 958817 (2026-07-20T03:52:09Z), 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/PL98H2099008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb18ef768377999f1e254cec53b18319288f506a44df168cb55e603ede3762f4d. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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/PL98H2099009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x474a49b9a79e0c1805a2d7a27db0c2b24c20c318a775e87e1ab25d752add86f8. 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/PL98H2099010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a504485b4af1bb4ac8943f0550ae99ae28903e536159ed1865c25905b2e3da9. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:37:25Z), 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/PL98H2099011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e2e687ac621014cf09fab03d56318734b99bf919874f1851bbde32623739722. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/PL98H2099013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2033cc7e3181d718a1bb73cc04951e98ecb0d3aba2fed3b744818b4781294bbd. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/PL98H2099014.
Introducing the Ivory Tower (Digital Bonus Track)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3ce1bd6d7fa21b91dbcbe83953e86df38ca17cdea57882758db1464f5332236. 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/PL98H2099016.
Camarilla (Qadir's Version) (Digital Bonus Track)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf092bf4250dc83d795b8f4932cab7a039767089482bc7ee5b12ed4ba5e0fa181. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T12:17:43Z), 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/PL98H2099017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4dd2767f7bfee41246650523ae6bfacf58cbbc386503d792133c81abd114d20. 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/PL98H2099018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccfcf6436743faebc6cd56ca949e73b9418430ce9cd9d614524ee931d764ce8a. 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/PL98H2099019.
Julia's Fate (Credits Theme) (Digital Bonus Track)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e1e8ef1439766508cc6e45648bd4129b106ac5b7e64e53ed5a4ca8d4f12b865. 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/PL98H2099024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23cd65c1deadc95e1b5ca213dcb94317d35341077b679b8547eb18659ebf36ab. Chain 2 (Bitcoin): anchored in block 958510 (2026-07-18T06:38:22Z), 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/GBDCA2103844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9e39a923e7c70aba9fd20e91265d8a98d573410ba61e857979396007b6db073. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T19:00:09Z), 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/GBDCA2103848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d952fc1b437dfe051d543149052881bab7f73f11772aaf570fedc4e5608ee96. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QMBZ92332492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d952fc1b437dfe051d543149052881bab7f73f11772aaf570fedc4e5608ee96. 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/QMBZ92332492.