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 0x3d22d44337d4e29a2413f1bb3e795a5edea2aef1730c70ebd2327f4f2890dd4a. 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/cbc88012-e784-4e15-99ba-54aaed74dfc0.json and https://artists.proofprofile.net/proofs/artist/cbc88012-e784-4e15-99ba-54aaed74dfc0.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 0xac7be8e747c63d223c0dd544b0d8e58eebdee60f5216d1ebff1f3bbb5eb92b46. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/KRA252402952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c30e2b6907ab0872a572ebce7ed96a0cebcbbfb6045bcf127df1f476e96c0ac. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/TWA532400685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35ae521fce367c002e3cd9af6f655323f5132cf284eb10ab7e6dbe5fb56d34ec. Chain 2 (Bitcoin): anchored in block 958086 (2026-07-15T02:55:47Z), 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/TWA532400684.
SCOOL ("SEMI-FINAL" Original Television Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd97dd3d4fc1cc1e734229f53dee7ad7dc033f2c71dcee4d4d0ed36e22f41574. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/KRA252403089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf607ec6c136e6801b86ba2883172cac735e4ae66e3e6c92226f58ce147040a44. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T12:45:22Z), 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/KRA252403106.
SCOOL ("FINAL" Original Television Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3eb0762296d3ff7cc346447b7d809527dcfd9ffa3e2da3aca822d2f8c501602d. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/KRA252403144.
雨過天晴的Rainbow (From SCOOL "FINAL" Original Television Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fed4db0fe331fd55745e3f8c8c8743febb87991c8b47548e3feab936949767f. 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/TWA532400742.
翻轉世界Boom! (From SCOOL "FINAL" Original Television Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a1bf0c90e1c3c379d99f59b780762f54a81638790f08906c0b84c4cf754d604. 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/TWA532400741.
Sweet Dance (From SCOOL "FINAL" Original Television Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0d0f0f7474cea03e6b028a9884671375c5be42b159bb855037414a0f355d25c. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T18:40:46Z), 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/TWA532400740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0aad2958d32add412211b186b4d796492e190c7a38c354da851aa72d8385aae. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/TWA532400628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd97dd3d4fc1cc1e734229f53dee7ad7dc033f2c71dcee4d4d0ed36e22f41574. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/KRA252403089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c30e2b6907ab0872a572ebce7ed96a0cebcbbfb6045bcf127df1f476e96c0ac. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/TWA532400685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf607ec6c136e6801b86ba2883172cac735e4ae66e3e6c92226f58ce147040a44. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/KRA252403106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35ae521fce367c002e3cd9af6f655323f5132cf284eb10ab7e6dbe5fb56d34ec. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/TWA532400684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fed4db0fe331fd55745e3f8c8c8743febb87991c8b47548e3feab936949767f. 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/TWA532400742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0d0f0f7474cea03e6b028a9884671375c5be42b159bb855037414a0f355d25c. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/TWA532400740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3eb0762296d3ff7cc346447b7d809527dcfd9ffa3e2da3aca822d2f8c501602d. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/KRA252403144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a1bf0c90e1c3c379d99f59b780762f54a81638790f08906c0b84c4cf754d604. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/TWA532400741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac7be8e747c63d223c0dd544b0d8e58eebdee60f5216d1ebff1f3bbb5eb92b46. 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/KRA252402952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdb0bf5fb5b287050c28f6fed9248161c65a777e8065798a417170fe98c4a8f1. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/TWCT52541802.
No Matter What（From《AFTER SCOOL》男團選秀ToYouz小分隊）
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a6277b41e7e404e721065796f55a7abd777ad5680d1f63d28a44f0bf3d1e87d. 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/TWCT52541804.