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 0x66e25868c75ac574e284b8a85f4793593283a68c8f7590c9657eb3d3e3ebdb77. Chain 2 (Bitcoin): anchored in block 953758 (2026-06-15T07:48:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b1f510d3-7e81-4a9e-8fa3-e49fb0c79fdf.json and https://artists.proofprofile.net/proofs/artist/b1f510d3-7e81-4a9e-8fa3-e49fb0c79fdf.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Musikal Keluarga Cemara (Original Cast Recording)
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 0x8c74fe417fc5bc3e19030495e9bf0091869bdc337cdf0d7a0680ae804fc1026c. 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/IDA172430142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9d1ab32b775e48fe020929295361679c5d3ae0cc75ac5751036808aba2075eb. 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/IDA172430119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f835fa2f7d0cc95824ff3dfa02cfeaff0f08263c5a828de304ffa6279a885e7. 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/IDA172430143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f2dd8f34b721a2a86e72a6010f7182efae0f6bd813d6a5cd2ac7cc08500328d. 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/IDA172430144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01865fbbc0d05142122f156ee0d499502f616b087c9d856147f738b51d310122. 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/IDA172430120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e57960d7dd427ac44b8b4bf2df9678ca730c3acc6a7870a0c74d9ef840a12a6. 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/IDA172430121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8389402686b1589fc3bddd7d8117fdf26a572ba49deb4d22dc305da5aeb7459. 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/IDA172430122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec2bbadf50dc07084f8f1b76c5b747a1e112dbb948d2b20b168f547c72535ff8. 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/IDA172430123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1520fe9491c32d3596ceb3e722d2f549d72d5f95628d3bd104011938f95c620. 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/IDA172430145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9edf630e8c31abb8000269f5fd55189325739b3965261c7e59c6006caa31c764. 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/IDA172430124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b20f3ead271f686c05c8a20220f3a6423ca374edec54f5893ec7ab03ac0fbb0. 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/IDA172430146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4462f399795a5244483f5aafc034f9f2c351e24e1ef3546fdce2ad6d32de2353. 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/IDA172430147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc84007a5353e20f40fdfd813ca71b2ab50b8e59f017838a5e0bc6c8570aede4c. 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/IDA172430148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e697aee563fdfb9b37d92265621489f3daf76d760f7b5770eb2e729bccddf94. 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/IDA172430149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9addd97130159a2919bcb54b6c1c2225d4b306c25286c05026f2c4624adb7f00. 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/IDA172430150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd34cf61301e2adbe10bd663b3a6d479a7be6e1224ecf85db75bf9c1b4c2dfec1. 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/IDA172430110.