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 0xfd2e262dc537dd8680f04b38c9c8639358b1bea8da94a6656364d510f2eac6a3. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6335fe37-b00b-4b8b-88c4-1365e760babd.json and https://artists.proofprofile.net/proofs/artist/6335fe37-b00b-4b8b-88c4-1365e760babd.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 0x127caf03d17f375cca66b6464f803cfba24bac01025f34f570322fcfea740bf8. 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/MYA110200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2795dbd73c7ed7f8de98272c2d07e1427f88ed256c98199a36b7edb1dd7bc3bd. 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/FR10S1529174.
Mari Kita Menyanyi ABC (Remastered Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0a2e5b698d2121654ef5669352c8d7120089356abca086f2c137a45fe8486ba. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/MYHY21570005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x219eb7b06b927b68358dc4b6d5e6e95468374d7d4d01d499fbef7a5f2a1295d8. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/MYHY21570007.
Tình Yêu Của Anh, Em Đã Từng Là Cả 1 Bầu Trời
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3605d98b574899d26adc2a6043fdc78d03999b1c291e68e49aba6778773da782. 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/QM6MZ2224995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeab1db0b41c6ecd8f9f544e1a576b8be7c2f9ea7bc57cd958a74c9fda7676bed. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/QM7282398490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a5a5e351a78cb75e8a5a7a4f78c6fb7c770615edfc01f77103d6300fca67fa8. 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/VNA0F2315766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45ed5dc8372d584c7d4706d8039bf8cb13647c6aba8ddc25511f596b835c1aa8. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T20:09:10Z), 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/VNA0F2303657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x035eeb208239eefa8299af54dd437937bef7b2850370f396b8044f095c971b30. Chain 2 (Bitcoin): anchored in block 957596 (2026-07-11T18:43:56Z), 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/VNA0F2313730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x786f52738d29436c6cac6d16e3fe23fbdebdfa9ccfb0bc98e11a92b8ef36d09f. 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/VNA0F2103389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8372546c5f24b8084cf802be577e64fb34d402133c5e60e989468408f4583c11. 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/VNA0F2103378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3caefa49277e70795250c2fa3be18b6bdb8b8123575a6a26571c5fb2cdac9d35. Chain 2 (Bitcoin): anchored in block 957852 (2026-07-13T11:25:45Z), 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/VNA0F2103392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x044d3dbe9b07045b59ead45fb45265998a9246e0b8c6fb9bebe65cdbf365278a. 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/VNA0F2103388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8ff6830f74a2254ff7ce260acb145e29682846afb50fb86d50984e4de4fdcbe. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/QMDA72575748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10a05c7ae3126ca534131ce2fc49ddab79d34587b617c881de604dbb10193e2b. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QMFME2550993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x513a2fccdaa59318180ec04bfbce1e87db4fb88e7dd2b14a4db47b9397def1de. Chain 2 (Bitcoin): anchored in block 958531 (2026-07-18T09:39:18Z), 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/QMFME2546186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x546563a75e6ebea770754610ea779a9e6ef666ae51faa8bb8f91949177d81faf. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:18:01Z), 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/QMFME2546141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7782b636191af08ab6983e6a8ae87517c2863704b6df863fb1c3581fd488201. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QMFMF2540188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61bc821babc3cf51f21ca1553f7e2bc93e57515a78071c7395b91d9769f1c650. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QMFMF2540171.