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 0xbe8bd7e8036309eb5f59e701350929c9e36272baeed507423b0b10a956f2a3e4. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/72f3f80f-59d3-461d-becc-b5b703e3e831.json and https://artists.proofprofile.net/proofs/artist/72f3f80f-59d3-461d-becc-b5b703e3e831.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
仙劍奇俠傳《仙劍奇俠傳三外傳 問情篇》
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 0xd367d67c494c089259c09a0c088092e1a4177f28618ef028c612a0f012c0c553. 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/TWX250402001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa222527ff5a8abf7069293c2aad67b38728c511df6f912e5b6b37ece7061c4a3. 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/TWX250402002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0db6353e35b77086449c93151554946e43ee0596f626461cdefcdb29843ae41. 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/TWX250402005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63e6c79dfe570c0bf505753a6761cbc0602f5a910a3c0971249c71ad3257ccf3. 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/TWX250402014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95a8ae28d02aeb0f9d047d7725360d9ee226792e693dae68e7a429499d936bb0. 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/TWX250402025.
仙劍奇俠傳五前傳 (遊戲音樂原聲帶)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c2d8b44c0bc3fde74a9c234335456d140501c2202a8e6425d0e9d28d864c5a7. 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/TWX251301001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60fdccef16906c3a0865eed887eca5852f6d009bf59f19455977fa29c95593ac. 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/TWX251301002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb507cd55abdf1fb8d96e8ec2d3d5f323a96fa111716f2317b567425ea777d55c. 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/TWX251301005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x584af3485ef0f292db2662301a1d7f39b01b2e49832b29a7d744713e5867f9dc. 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/TWX251301006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x108f162a54e133d433347460db73f2d9e51597afa3171683f7b9c8cee425cea1. 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/TWX251301007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41a13aacc14400c3f5b2a962927033032496e0303a2e5f0cd4cc7f7151082121. 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/TWX251301008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cdafe537fa3456587635395c694f5c2ecd3528dee97fce0ef96784faf40d876. 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/TWX251301021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82af6d1ce397612a252d29114c9392672cba2a79b032ff8bd4811b1f45144052. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/TWX251301028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb14feb3f6ef4dbd76e5ca67299544eed77cc744922265c7f3cc5c6d4bf97926. 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/TWX251301041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa90d75dd4155dcbb4d5e0f5abc2adf0eb1d5ec932c4b8608d4cbe0cdb7bb4f25. 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/TWX251301044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c569d0307b3f6cc7673f8d71131a7ed0c954c5491392451b939db4f1f18b10a. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/TWX251301045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16b05e1f9cc3d9caa9832f3ba5cd1f26c569fc0e6039a7a311eadd2d1ac65e83. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/TWA872002338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefbe2a3fbb6abf1d8e930d3a466dc5a3df4575f3d1a56f6c8a1ea28d2157932b. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/TWA872002337.
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 0x8528dff011bd6d839277c2432e23f48575d781834968a937f1b001b64d7bb299. 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/TWA872002347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x215738160a8e5625a286c6c629138b8d94423f52039c8fc472b9ee03d3e578ed. Chain 2 (Bitcoin): anchored in block 960210 (2026-07-30T05:21:45Z), 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/TWA872002346.