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 0xfbb96b3c8fe564e7242a60d2fb4b450fd58a34c5620fbec6c1de87153beb0a58. 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/4f75bfa1-0b9b-4372-9166-402eb83b48b3.json and https://artists.proofprofile.net/proofs/artist/4f75bfa1-0b9b-4372-9166-402eb83b48b3.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 0x148c79748bd97348b9599927d5f2e9e1b922a05cf379529a4d6900b527b83b46. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USWD10834893.
High School Musical 3: Nos Années Lycée (Bande Originale du Film)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x831afdaf4c530a0c100b6416104a583b898e3d2d3ef550599f9928dfa6fcb9a8. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USWD10834644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x855bc2d9155ab490810a5103f386589735006944a9060add798f3c195707f247. 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/USWD10834839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee91f414753c689ed3df0bc769355235d72d7aeb8938c84b97abad4fb983f177. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USWD10834891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33af69e21f1de9a209f0e26409b418405d969bf3ae620590253687161568eff8. 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/USWD10834840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cd979d36e17cf1bd14dd7e82b58cb43fef9f9b4af6a4f75295e81f9c7ced70b. 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/USWD10834892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x148c79748bd97348b9599927d5f2e9e1b922a05cf379529a4d6900b527b83b46. 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/USWD10834893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4311e5b2162562306bb2031f6ce94dfacea97df815c37bcc8a37fb6f3332961c. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USWD10834899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61691433ddca282d5ff7f179b79cbcaf68735726ad672b8cab30586250d0637c. 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/USWD10834894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7694af2f26945e20d3c9b0bbc9dea2a06935dd459d1ca0901cd1834981059b9c. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USWD10834895.
We're All In This Together (Graduation Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47957e2a0f2763a49230f0214f427e27062efb9bd44c5eca3f97fffa3ccdf16e. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USWD10834896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x896b67c1db889a0975bf6b8961bbec1aa40bc18f390f39f1db8400a8c362f66b. 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/USWD10834897.
High School Musical 2: Non-Stop Dance Party
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68fcbf0eb6598491cf3b9927c611e8810af92d448285a936b8798aa6f72b1f03. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USWD10733252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fdab85a7e3a2887915cafdb23301fa46128219e6319f8db94b0f12059e30bed. 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/USWD10733253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2731065c77c05bbd7f8ea7101b08a4938026bb970130b7463c2d07b9436e8da3. 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/USWD10733254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x996391d60fcfa230e7878094335c28cd660b15ae98fd6ca47dd210cb664c466b. 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/USWD10733255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78fd65e4ef5f4031e9de98db5d852d3ea048081a7e11ad18c7251d86a52f8f81. 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/USWD10733256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfd43fa72b4f69b5852dc8c782714027a923c95d1fe2305715419a44724618d3. 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/USWD10733257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a524a0d13f94a3c83aeea3493ed92b113b668a954767cb30112f5701208ab1d. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USWD10733258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d8e1dd148c7cc0eca254dafaded0591c10b047ee2cc39552a42afe9af54fd34. 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/USWD10733259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x573583422a9404d7329cc8055278d4ce3d41d57bd31ce69867d0988f0bd6b1ac. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USWD10733260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59ce2509d7d9650b4ea9fb10bae289193ca098335344b3d4b38cc1b1d52ff5ab. 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/USWD10733261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf6db64b120ba9eacf6749bd9d04a49934ddc0a23ff7237605e037eab83e52c6. 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/USWD10733263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb52b7e6c2c5e162c5440e3b2f6602926c6e38999809d0ce6275c902097af1a1b. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USWD10733193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4ef9c7ece0950852eaaf8d77c6461f5f08b94814e5240d885cf35ffeda415ab. 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/USWD10731999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb15ee2f4c2ec5e1836585d778d5c748bc0452d8745a664cce2461c1a110c3cae. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USWD10527742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4f7677ef634fc287bec8d89da5cbcdfd4196d8494e3f4f846932ce739fce3fc. 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/USWD10527735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4f7677ef634fc287bec8d89da5cbcdfd4196d8494e3f4f846932ce739fce3fc. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USWD10527735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72debebb233dc771797ea5e431e852383b000ab5a805355c5522bc937ec01c31. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USWD10527736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8fbf5230af5e24635f440f6a2400b435cf915294d4d56382f8d1586df449eb9. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USWD10527737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0db79007854651280c3994432ca008cf694e06583816647efb33ccca77f2169c. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USWD10527738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8c0139c39b442283c2dc64d8ebdcaf396f4c67179217ea2789654675ea0615f. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USWD10527739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa02e8e02a80b0b5bb54143fdcf51f2400455d589e9d66e6a3565f62e3f2a7bbd. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USWD10527740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0d5228d02f6f7196929db39099eb3fe23dc166877e5890eb6a3489b634000a6. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USWD10527741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e024293b4893290bd0ac5da9486865663635e7fa85c7683cd13e82525b0efe8. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USWD10527744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc59b2341a714919d5be8e11fcffffce8cf8f7f8093511720520d02bee5ba9ddf. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USWD10527945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2322a6a8380d1535f0c956630eb8e9f349a7e87e9338311aff7087c9a21c8b08. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USWD10527946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x357541468c06c8dffce58b5f38646d1251f447c84eac8f62c6148e724b059160. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USWD10527947.
High School Musical 2 Original Soundtrack
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb24a5431a52b3aa3edff0a34a604ae3aed1649a52738dbc670aa29f8a0a9e183. 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/USWD10732094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc812700bc858a6851c41c80a4717743609fd3f2925d6e0b52fda8fd6b99b5294. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USWD10732101.