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 0xf25c6814013e6e7b8528b102d274ff8a068c5e2268a440859cf8c44c588bdd54. Chain 2 (Bitcoin): anchored in block 954553 (2026-06-20T11:51:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/aba6025d-ec71-4099-b0fb-008e42df576d.json and https://artists.proofprofile.net/proofs/artist/aba6025d-ec71-4099-b0fb-008e42df576d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
智冠超炫電玩配樂(10): 2013 載酒行-俠與酒概念專輯
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 0x0c2911a8b59f142ec3ae82db3794f3fb0a8832d7bd0d06e2d5c998648266501c. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/TWT171301001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12f9bc16288dccf73064a4b142b617d4417f5bf844740d3d7b849a35ba77a090. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/TWT171301002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53057120f55999175ac0e3117fd8adba313ff17de308e3fa0c04d6f120bdaba9. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/TWT171301005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79b333c2f8c36318f0a8f46d796d33f19b245fc6d7ea621f2a82540b2b8520d3. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/TWT171301010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b3d2a93897cd00dd7c330b85eecab43f0770b36446938f13e438de94137b482. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/TWT171301003.
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 0x7178adae96d912c61920d49a0b0a7dd390918b948bd2c7bdd9c0044a920353ca. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/TWT171301004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f0f4aff8c3778d05c0418dc504a002d75d9cabefcf4f180ff847d87919520d3. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/TWT171301011.
智冠超炫電玩配樂(19): 那些年我們一起追的遊戲 電玩配樂主題曲
Where Wolf? (From Video Game "Harry Potter: Magic Awakened" Hogsmeads Season)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7743369adc77249a637409c459dc373903eff67c866255098c4c884b1a95057. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/TWCG52493088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x280c64c3baaa40a0315a0daf1217d87c8539919d496c33f5df1d1d04f22ba47b. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/TWCG52493089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93e66db87de635ee736fa73722d45330179ff588c683dc368f96b7e8b90f8749. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/TWCG52493087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbef5acd63edb36dd6a4cb333d19030bf624804996f0a044b26be5eb8ad89ca1. Chain 2 (Bitcoin): anchored in block 960183 (2026-07-30T01:10:20Z), 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/TWCG52493090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc75b3e3888331c6f621330bac3427cf8dfc80a326bb9d1f13a6f91fd18d85b24. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/TWCG52399913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x758c44787dd4ec122ea8db332eca4e679b9058806da2f17c05d3d965ed605f3b. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/TWCG52399914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x954d5d2dc82420697f22c41c4d857d81b0eef5fd264dae4efd82d91d6058e1b2. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/TWCG52399915.
Black Lake Lullaby (From Video Game "Harry Potter: Magic Awakened" Black Lake Season)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6b477d633e1eb51ff0446aa16dd558ae6e48e7d4b85cc524b200e476c31a84b. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/TWCG52493095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc4a5d75c985fb4e3c0a8bc0d199478f543fbdb9f4805d483d3565ffe9679e2d. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/TWCG52493098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24fbc03d4e3c85f37c9d9a585a05519b7b4c088ebf38918bdc3df8e7573ba8dd. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/TWCG52493104.
Mooncalves Dancing - Short Ver. / Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe67eec0b3899f7235bf51d60d150c619cea3f4843a25fb951d0c727d4550b1a2. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/TWCG52493106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b8b7623ebc051e30baeb909e108581fce098db9dab75ff7e43fc1b739a448fd. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/TWCG52493108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83046cdbd4bf04503f3ce2e2ad962df78272d25cf52be791d99f2c84ba76e616. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/TWCG52493100.