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 0xa4e72d0a7311c48535e18cb0d4303678eeb0d0f21b57c3a5802a3dd3107e8607. 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/671ce988-2b8e-4c56-b5cd-e86669ccd720.json and https://artists.proofprofile.net/proofs/artist/671ce988-2b8e-4c56-b5cd-e86669ccd720.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 0x83fcabe24082dafc4283f9a4492199118ef4535cb70f7fc246b738abeef31898. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/IDC302111051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7f3ce223f772032d62abc2b0e5265e275cac1e6b1ca732d82240998242792f5. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/IDC302111365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0c393ed9cacb1783cd6f1920ab4490e11988f3b8105d09c564c28aaa51273e9. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/IDC302111413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fbe684755293ab6918b48b1a3c598fb61a88f323cb064a370d9dc68ad4d3dcc. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/IDC302111426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeef9b444c0adcfe88de1bbe663a2926e0c89d9bbf981f8796de178095aaf530. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/IDC302003543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x127649c62e7fc987bf0f7740a63b80d3e6ca8cee1a1988022963f23fba134a33. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/IDC302010406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcef1f5be2615d6144ac62358aca28a7d673a9c3b207eb2ec8cbf495d892c0f55. 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/IDC302111595.
Li Khamsatun: Antara Azab dan Ujian (Cover)
Li Khamsatun: Antara Azab dan Ujian - Cover
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc62e1ec8542af4d20122a7878b70504dbfd25710f4bb8269586a7e35607e7a13. 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/IDC302003525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa70beea4ab165e66a1ced7f368f37c9daf67c92c50ef6cda509dcb8f42df71f3. 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/IDC302110550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c487c560da4beca40c4828e904bd8b71a35d2e34a62eeab4172643d700ffff6. Chain 2 (Bitcoin): anchored in block 958653 (2026-07-19T03:54:23Z), 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/IDC302111735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1908d0c920109a0726284e14b6098b3e938529da4808dce1e32852af3e667385. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/IDC302111711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5256b27d3f16c74269c65c67c30ce6b168c43c26b0ccf09159e7eee8b9ca6c50. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QMBZ92369992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3313deb9aa0b1541453327860c65cc07f90ef263a9331768d9b9fd4ae085763e. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QMBZ92369995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecf05d0e23cdc224a9ebe96068b2ede78d44f635cba9f184781eaef25ff53ae4. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QMBZ92369963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7f080421b61f459083bcc1a46032260cdc46a9b9d2c4e1db11b12a08445d20a. Chain 2 (Bitcoin): anchored in block 958329 (2026-07-17T00:17:39Z), 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/IDC302114000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51d0f20d6e87abc518e45e6e486a875d4e4a9af77a4e99fc012f48c75695f1fb. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/IDC302114277.