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 0x879aa8c01776e3ac5e72de3ef9c96fc144cd67cdbb8ae38533bfdcd148af504e. 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/561f7ff7-59e5-40d8-97ee-791ced3a3228.json and https://artists.proofprofile.net/proofs/artist/561f7ff7-59e5-40d8-97ee-791ced3a3228.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 0xdc7912085304aa721ffb438ad142c62190db297ea583cf63b03874d45764193f. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/CAJR72300024.
Humanist Vampire Seeking Consenting Suicidal Person (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x073e5d6c5883a9bb04f9d9b8764005d8b1c6a351f46f3985709c827fbc3eb728. 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/GBRKQ2471933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f9def125e22a8edb8fe80ee0c14f25b77dce7daab732515ecda564910b4d5ca. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBRKQ2471934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2794139a9ffd04c8fe9812d7b84dfa9755055208863edfc588fb95443a7e855. 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/GBRKQ2471935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3fce98ee3257056e1200b31048c5360fa63e0caf6c2752544738daa6e5837dc. 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/GBRKQ2471937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x807bc80abcd6159f39838acd3ea283c13122ebfd9115d33f71146541eee3978c. 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/GBRKQ2471939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ca4797249519ba518bf2074bfb3f715a49bba92578d6e19f4b05500fb76e109. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/GBRKQ2471940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc054f8c2bfe048be0eff5b0ce1dcd454fc8703afe700716929f5a11a12b46b84. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBRKQ2471942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x390b463de797763aa02dce579dc17d8194740cd7562ed6a4203c5f5eb8448f2f. 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/GBRKQ2471944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec575d455c9699b309b081df2703824a24706cb4fe2d2c1665b4770f818eeb29. 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/GBRKQ2471945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09c0b136c1892a8b4f03304babfdd5edb6bf2459e545d9a1af76ea245afc177c. 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/GBRKQ2471946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb53af27d06a8b5772fdf2c6f2f2d34016567d69710dd92288ee60278959adcb. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/GBRKQ2471938.
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 0x16794350078ee45d9c2a4a3b6e166bd5d5dfc1cb76e40de2d62e547d0a109f57. Chain 2 (Bitcoin): anchored in block 960155 (2026-07-29T22:13:32Z), 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/GBRKQ2471943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c7a68ce64107f7ae2d72d9764371e280f88bcf491bca354c9f60c042dbb644e. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USHR12243904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1e702d73c0cc56b735243fc137c017838aafeac7183ed3b21a102594b77bf9a. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USHR12243908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8da8cc8b6f96b80a04f96642e7626bd72b80858a547792fb21769cff99ba839f. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USHR12243924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe800a3237f5e2eb0f5094cbbec203ea9afd010006f98aa97c0b6543143284658. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/USHR12243905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ad149bf816b38dfff2be5ba5e0c244a72fdf37c375a54b950acd19eb3efefb6. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/USHR12243927.
Les Affamés (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f5f1c4702c388c55af7829cf152d40e054993dd647d895122085fb6a4cf9a64. 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/CAQ521815002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeece09a832545791b48a7d863cdfddaa72a5a69205f65e6a0688bb66e5f01e6f. 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/CAQ521815001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d5122d08d81e081ee15a1b7f4a0b455f95618bb08f3bc7ddac4b1f1f77b2249. 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/CAQ521815003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x230f5d3e1ce504f48444acd3ee844aefec15a2cc1c6440146726a0e3d25f47a8. 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/CAQ521810104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62155c381bfd6eaf17dad7e40fc3e9f197889451d26f2d681c5f90c4d2a79026. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/CAQ521810105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64b4a6043a3f937d0adbb19a5953cd32ee9a20d926a79e63ab2d6aa7992997e5. 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/CAQ521810106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x830e05bca4bf532bd18c42ceed265feb1ede3dcd4c6f949a6883e3f88e04d02e. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/CAQ521810107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfc63a7dbbf1f1b76c765ccdd2f2c4ed99833a3ac076bfcb720d4c7101e4ccb0. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/CAQ521815004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x029343c9769b349ae2f04d793b88987450037cf35faf53e201fc4030d41c955f. 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/CAQ521810110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x176382eb7389b7aa82e957086574994c513347b31dd3f411d514505c92491ecb. Chain 2 (Bitcoin): anchored in block 960153 (2026-07-29T21:57:12Z), 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/CAQ521810109.
SDR (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bbfda29c2f10788cdb8cd46d50077a9b928e5b43fd282658415ec82e24ee26b. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/CAEWQ2100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc7912085304aa721ffb438ad142c62190db297ea583cf63b03874d45764193f. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/CAJR72300024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc7912085304aa721ffb438ad142c62190db297ea583cf63b03874d45764193f. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/CAJR72300024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe717c2c9af0cd9058060f54ff44b0d943937547f2b3f215aaf641b3c582050a5. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/CAK722389211.