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 0x1858b1c29dfc82e0a72a858aad1eb2d8ef38102a70fd4e7eb59bdd5ce5de7c41. 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/24b14ede-fe3e-462f-82cc-3a071b3ab8d0.json and https://artists.proofprofile.net/proofs/artist/24b14ede-fe3e-462f-82cc-3a071b3ab8d0.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 0x0f4b8068314d89713190b796dc08a1f1ba021a4e90e4f74292f0993c43030a11. Chain 2 (Bitcoin): anchored in block 958682 (2026-07-19T06:17:12Z), 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/USQY51711002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b54b5c2f91c68c3befe785833e9247db94cd4aef9ef0e6b06d6856287fadefd. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/USQY51711003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69ba0870f3d020bbff056f2bec92d4b9f1a3bbcaa27623f94f9f09c3f95010f9. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/USQY51711009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbff4db46b842b50ab78a6b7c0027cc7f431f30109451027bf6e6808157f754f. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/MYLR11530016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x684e8edf49bad56d06644d78b703780da1e9e06f2802fbea5a352a1e8302a086. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/IDB111900294.
Ini Dangdut S01: Cerita Hati Yang Berbeda
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21ef17982bb544e521e7c3964749f795d3c03db9eaf5b8cfd321a26ac38d1df5. Chain 2 (Bitcoin): anchored in block 957573 (2026-07-11T13:43:13Z), 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/IDB111900137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb8597eca7ed9237bfe67ae45fed64b1fb6bb776ec99163d0e0e392bf2c1c1b7. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/IDB111900010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0ce3ee62b88d0f01a4b5af2d2c44b24dbd41fa106fd43781be194f0709c9f84. Chain 2 (Bitcoin): anchored in block 957573 (2026-07-11T13:43:13Z), 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/IDB111900150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x015456344f0cb8b5875397f3f0d624a22aed394c41ace1d9de7dabdd9a092450. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/IDB111900154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15fc695b09fc5485c182efa4a36721bf9338dcb543822a7b8a9c75f9c1ee647b. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/IDB772102009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8caaec410ba169684c9fbc59a287bfaa6808915fb6574f9b07cac67b0b4ff15. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/IDB772101382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1016ff4bd84956d5f1f6bf01b04e3533a1b56926a325df70d5a276d15f1c2074. Chain 2 (Bitcoin): anchored in block 958666 (2026-07-19T05:00:30Z), 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/IDB772101407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3742fb153562a30880afedc6bd4243cd346fa6e399a9f431d3b14bbe1294d05. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/IDB772102454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x374bc67832e7a6730fc91f2f55b79eef83b93eb15dc386570a490d668aa3c9e0. Chain 2 (Bitcoin): anchored in block 958380 (2026-07-17T07:07:02Z), 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/IDB772103054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x235022e819d4d5cbd7cc61aa1e383029a08129fd04ef1d3662bba9c77258617b. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/IDB772103920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3742fb153562a30880afedc6bd4243cd346fa6e399a9f431d3b14bbe1294d05. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/IDB772102454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcacf063c7277e2ed6691c113812cb994d2bb0f813970ef76565fd86f1f2bb273. 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/IDA141902891.