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 0xd8ad1d28607ca792c31b06148cd13ad68e9f40832d7b7f42721f6254aa2f8787. 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/b29bc324-730a-4c3c-9502-39ca2992c57f.json and https://artists.proofprofile.net/proofs/artist/b29bc324-730a-4c3c-9502-39ca2992c57f.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 0xf8ee6b1734516b2ee5648e8b1ac2b8344795e2e7c846b5fe60cfa1d7dc5e3bad. 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/INA982300522.
Nadikar (Original Motion Picture Soundtrack)
Omal Kanave - David Origin Story, Chapter 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bf55812f5ab156f584884199f1daf22f33b8920d7a5b051c9cafe56e4474722. 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/INT202404389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4c68da040cb361644c2841fd760189e315aeb6789d0da59f29076d6003588a3. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/INT202404443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe76907728fa918eb7b967bef64e1c2aab50ef683dc8b80a1b215fbc005bc054f. 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/INT202404470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2d1dd70dffb3fff274f6b8267150835540dd221587511fd8a6816ebbf5fca01. 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/INT202404468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef7bfbc9767fbbb5f6dc699c8bb9b62265d5f035053f66a110a050a87913ebe1. 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/INT202404471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2d1dd70dffb3fff274f6b8267150835540dd221587511fd8a6816ebbf5fca01. 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/INT202404468.
Chaaver (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75d66b21b5c300a3fcc17fd6de55f9bee78b01f5bec91423e8423b100b1ee226. 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/INT202303860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x385fc99a4d002ea11bf5e38ff8312aba7335f7e26cde100928f2b68fc8ce4e6a. 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/INT202303865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5f451594b93975cdbe5c8ef3d5d4b471480e341f22ef8e0f282f95a4b52979a. 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/INT202303922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40acd724261ad87d49095e7c09fe0668e1cc8ff79494aab0e65e21bd2042bed2. 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/INT202303858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c31ed4d90e10d8b6f5b93762b610a601202f1d435c4d183798337dc659282bc. 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/INT202303923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75d66b21b5c300a3fcc17fd6de55f9bee78b01f5bec91423e8423b100b1ee226. 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/INT202303860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90759d356aa8897c06c45d9798f51250d153a48df5138aaeb5daf0049f904e33. 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/USA2P2417188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe852160c37240fe71cca9c7b17e081fd56d5e9bdf59dcdf0fe7cd2c365a0d6d9. 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/TCAIR2456589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad029cda456396381cc87384210de996c02516b954b9b66ee1a725f43a4fd9f8. 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/USA2P2440847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcef1cc641e72f568d64cbf7d2170a0cdbd8c91b42a4a48d62af5ff3c6b279ea. 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/QM4TX2444651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ab0adb39ad4a538708cb63974007e593aff0390e6c04e86659d3c965eb4f295. 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/INT202404319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70cbbf6e1cee330cad8b998b9dee2b6e324be05b7d348548098bb423e7a87fc2. 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/GBLV62323268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79fbf0ef49bbaa0091eb384a8e25e38083f5f85c415da81cf7fb951e06f459f4. 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/QZMER2370538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bd4d4bbd92ab69d26f1d3e66327f8054434c936303b29adb646036e67c6f0f8. 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/QZNWQ2225705.
Kadakan (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4e0f321cdb7b7f936d77b5d68a3fd845ec754b41618ed1decfe705d728237f6. 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/INT202404288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59569805ee8b67222df7fa1ad6135e1a5c4cc85f96690028034b834be08f5414. 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/INT202404298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ab0adb39ad4a538708cb63974007e593aff0390e6c04e86659d3c965eb4f295. 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/INT202404319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0df81517afc45fe07f51037a923b868087a5d67f180aa91d3fcb1b383072be85. 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/USA2P2440846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x695de4b2990231edf21ac6c6d291df0c979ac5f65c251434064bab8328509b83. 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/USA2P2440849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x533f6f47dd36f522c0aac12b2ad6e84c6c382485e698b3674936e4a1ca7e21dc. 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/USA2P2437630.
Deva (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb175a7b117b1fc64606f80bed3b538bc48dd931c584e6157830a6ad607a4e5f1. 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/INZ031417986.
Marco (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05e844da66e2184319799a1b2d02f40ca4a0e67b08ce7d55c14f3ccb775666c1. 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/INS172412594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75ad8a66be22b12946e21b0340487c2e456bcbab5b8c7118cadb2a5b076c0226. 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/INS172412656.