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 0x6e90e343dc9163f6b456bd32e93dc7f2217dc5efeec86ee3f52fc940905888ce. 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/44e4e024-6704-4a0e-8bb7-7e6b2b0493dc.json and https://artists.proofprofile.net/proofs/artist/44e4e024-6704-4a0e-8bb7-7e6b2b0493dc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Solo (Original Motion Picture Soundtrack)
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 0x803e4a7228107fcbc94c7725c2b87757364aae9d59b98d39b69dd5584fac4c48. 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/INS231727527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11b4b1300bfdae5a8591b0495b6277f4345b7ccb233db5a8a5990c12e0f4c13c. 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/INS231727528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc81e9153073fd82820c720a67bf2f8f262b7825425bf47c38fda6a34e31de2e0. 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/INS231727529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91bba96980a51a4f18302fcaef52be6f0adf1ec450cb0869c03949089f0f5072. 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/INS231727530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97dcdf1dc9379c915ce6b8e9d379aadca6f9ab4871e73018251f232e1fbe4f05. 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/INM811460602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc218b1c55130d40150eab38a9a9432faa2ad1a6f93a23314c2cdb8e289b94ab2. 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/INM812100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8629f65aa6e5e0f9b27b92dc30c66343df076e2afb772dbae44419a66a418ec4. 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/INM811460601.
Malarvaadi Arts Club (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3905c9d40c809e3c2ba5f286fb76cc717c4a6e1376623b0cde8bee720110415. 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/INM201001546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b0d72673b1d4b887dbf81b524e1dd493c340b04b85991747c0e7dd56377a141. 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/INM201001547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68cd5f98684ea682da8332239bcf1255482e412728db73fb7759b14c11ec1b26. 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/INM201001548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4fca42560606cd8b06eb1c5faf363555d2cff0b769c35f3512a05372536463f. 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/INM201001549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50a23f867ad0a507cc63f0bf1aa928749e67652a3b050956f806d72e685ff5e6. 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/INM201001551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73ef4efe2efbb8b26f2a97e562a71f190b9474c0d540439148271cdf90b0a130. 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/INM201001552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4ebd8ab2338a74061a31c8e91a1f4d9a781e9a3589414f68f270a0088586f10. 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/INM201001553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x268a8c8eacc64b819e05797fe12bb9c965233ea8461280cc8b2061a70459be00. Chain 2 (Bitcoin): anchored in block 959146 (2026-07-22T15:41:47Z), 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/INM201001554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6932f768bdb60aaa3c468d8d903033aa44d9567105e85d8d9832e3a2379f447. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/INM201001555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2ae7f83cc62c9f9f3c6e85a63e8d5ae37f3aa78915a1a0bc5274ef1a6cc1d32. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/INM811457774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x196c1879e979c5a1d96968fc3e30e5dcaf2e8745ca431433d152c1683148291a. 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/INM811457775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc0efb980d035ffced3489d9d24f64b030e8cce5d1b2c4c38c87008761670ff4. 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/INM811458782.
Bow Bow Song (From "Anugraheethan Antony")
Imai (Original Motion Picture Soundtrack)