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 0x501afe95eeff1c243afac9e328b3c98ead7c63cb2338487e1691765d73c3f0f8. Chain 2 (Bitcoin): anchored in block 954587 (2026-06-20T19:10:41Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bb2c0627-424c-491e-9f85-f5237688ee55.json and https://artists.proofprofile.net/proofs/artist/bb2c0627-424c-491e-9f85-f5237688ee55.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 0x60d102b23d1e529f464e0e34fef9b29c80c61963e4bc6026ee1ffb1d614f4cd4. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/TWE771988081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x572f1de22f63245ce89f4655af1444c27c9af00874fec77b681a12b71b13fcb4. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/TWE771988082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba6ab3ef3191191a80d8bb1e0f25d8dc7921e13e06e105e5d590124831c115e9. 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/TWE771988083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f33555368acf5f6b6fc05e3eb9b00161a8ac7603933fab1222f3f8a2dab4b25. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/TWE771988084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x225f5d37a49d8ddd10acd0970eef99e458ca197baee34088496b610395ddd364. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/TWE771988087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef7f7bdd8657920cb94f12cc78c06b2946740ec77f86d7b843fca12c62f88b94. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/TWE771588012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd94c4c653ae3e9de13e24fc894f0baf34455a0ff601f7af9e567a5da51648c68. 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/TWE771588015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x511921c6db5daa7bbafb241c02827058d28de52bf72c478f1e2cb38354853805. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/TWE771588019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb77ffa7cfc9c4d0faa9a3006be85ef2490da04a096014458a1d99563c52d94d0. 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/TWCG52499404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13f1e9d6eb9bffea508c297c01ec952b696feaaabab2ecc24fbdd00eada40bb2. 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/TWCG52499403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11a899f392ccbf1b30099dd9d79e300971f5b42e25b76316c233df2fb79348a3. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), 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/TWCG52499400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89e6d855bdb87d85ea4ce1a65fd7ff97fd620f6a100f31735c095c2a320b400a. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/TWCG52499395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce05b262cc052b5bf15593e3d2949150289ad5b3b98a4f89030374c92df0764a. 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/TWCG52499398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce99ab4f89487145ca28d3f0f3e92bdcfbba44b0745b93b46de4f7a5d1c3bcf4. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/TWCG52499399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb26f1fd0f59dda32ab913cce8c4c6d8747af788e008b02cbc9e98d3292637758. 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/TWE771588054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad89d2d8de85a1bfe59e389c34f679f6c6c0f5cf702c3cd1d9d68dba95ecfb7f. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/TWE771588060.
因為愛你 (大愛劇場《阿英的成長日記》主題曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf95ee77182ed20681cd62fa6e74e685f60f6837f54ec683e98daa92df038599. 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/TWA871802304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe304b5ad96d7c7b9d9d87898556f5cd4b0cb3ed0dd94afcdc3b6d19e6a26af36. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/TWE771888032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f30c170b9c89e26b4631815b6d3bf0dba33072a8871569dc76e4ad3861427b0. 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/TWE771888037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8347dd3ae991b1e725e3cc3b360174d69897c865842020fa3ab68ce0a96fbd8a. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/TWE771888040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1dc2f954ea6bbbba8c560d36dd477f8e4e4f4ff810b5cbea639aeb1c818f08f. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/TWE770408221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cf1561b7bd54b8ad0597926db2af1b4298f1ccb21fa5fe9ff372b0e07d2842d. 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/TWE770411403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf18b8f411fd46e5d3345f0eede5c59b307bc17fcd30d36b8fe815752e50a3ca2. 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/TWE770408408.
霹靂英雄音樂精選二十三: 刀龍傳說 (電視原聲帶)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb10034c18418763a47e1562334346a393b6a3bb170b3d66abaa5b376826eff8d. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/TWM030911901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1af031be0ef17629e40e4a76dd9cdcf4ccd443221df1fb853125c907d4b5f9e. 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/TWM030926922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b87a2667261afc740109a87acb17c02da04b91d92e8620c619a3b313516c0fa. 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/TWM030926912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc24b5e228f2c127d11c4afa95555dd80c61a1472ea04a999112888189366eacb. 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/TWM030926906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c0cb4790bbd384a3c031307c92a1fe0d2aaddd99fe0c3e72abd4d751208e7bd. Chain 2 (Bitcoin): anchored in block 960259 (2026-07-30T12:51:24Z), 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/TWM030926726.
霹靂英雄音樂精選三十八: 動機風雲 (電視原聲帶)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd91251e8334e0756f0e433abcc8e562839139af1d3d679402320f301dd9fbf11. Chain 2 (Bitcoin): anchored in block 960381 (2026-07-31T09:50:11Z), 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/TWM031211201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x355cd51d264bc4646cddddf9ad1fa0acbeb3b4987f7384a27c73b4adeb5de9bd. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/TWM031226211.