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 0x46916d9fddf3d7aad25528c2d00707eb70eebaf91a1fc883e023d07add3f8387. Chain 2 (Bitcoin): anchored in block 953772 (2026-06-15T10:33:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c7bc15f6-2b41-49d3-83c1-fc3601ec541f.json and https://artists.proofprofile.net/proofs/artist/c7bc15f6-2b41-49d3-83c1-fc3601ec541f.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 0x42528771cfab02f6796768809e745c9a8f454f75379c5d2556d93784a8f35416. 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/TWA871501705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac6251276b7be283eccbb5044496f77948af2a325438d6df8f5861d2763b5c07. 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/TWA459690501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d42e7e07167cfa9d2404fe6815988d1805c11a142ceb8df622bd66cc9bcdd4c. 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/TWA459690502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2fc449e194a5f15ce0f1cc402a4fdcf1deefcc56967ecdddf5cff34528cd185. 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/TWA459690503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6300d15ca6194f65ef681a9a8b123e72831e08cc7cf7c1423b44b89ea5e36dd. 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/TWA459690504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16260cfe020a3cb405b5ea965d21c08202a07ed4d5aa39b5fc3eb0e8421ef94f. 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/TWA459690506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd09bd45b075ce5ea1438d928b4f4b8b9c6431ba2025fae4c4e64dfca0eb1b544. 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/TWA459690507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9246427894dae0abe81bc6d07893e2284425f83be2b348fb165908d1cdf70bcc. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/TWA459690508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b8fb0278eff9c876cc6fbbbd9a79b024a3ea96d9d99081d8347abb266393e27. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/TWA459690509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2aebd60e9966d0e636719ed5f095cb08fc5625ec05b4ec3464abc943efd52a4. 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/TWA459690510.
鳳凰花季 (大愛劇場《那一年鳳凰花開時》主題曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57fb256e8b51249a236397562445e70c77b369f658dba9dd9ee50d254345fc8d. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-22T01:04:30Z), 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/TWA871000503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6916ced44bc708aa569a41b7c3f9555830d6204ce055dc948392b56f0ade6013. 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/TWCT51709443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf45126cfe1cf19f0f70d4bed85ad9510ece1cf71195cf1ce525da91f2f501b2. 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/TWCT51709444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5c554255d0f801d5e97f85981c21b5ea011fe8d183ec6dab9e68a6f2971da18. 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/TWCT51709445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6eed970ae7fdf434a17f360431a5c23b103194551ae0eba6d81859d3f2aa8c89. 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/TWCT51709447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e32cbfb8b54ab7bb94ded9f7dffbb1793efaf2e469aedf32d2515a208f539d2. 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/TWCT51709450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebb8c1c3d779c0557baf8f0ad05a3623aaa3baad4ab4b8d253b5e4a2d5aa8eb2. 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/TWCT52331650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0b2b574a6307c270e347021e82a0b73d9f227172c0823f04dac6066bb96db6b. 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/TWCT52332567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa712773872b91ebc1ea01cbaccb17aeb7eb98f49a47cb6c5690e9f705e63519. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/TWCT52332568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ba8ad2d83adbb663165d5972636dc1158134c75ca463ac908a4fe4a9e06e42e. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/TWCT52332570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebb8c1c3d779c0557baf8f0ad05a3623aaa3baad4ab4b8d253b5e4a2d5aa8eb2. 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/TWCT52331650.
路要自己走 (大愛劇場《一閃一閃亮晶晶》主題曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79a29b13ca71cc743f9769ed0ef099bb8b78c9c9b37ce453efe86e2a1e79d2ae. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/TWA870900404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd36d104e18306044c701e173749e9e27921aa1dd196fbaf5c9ca9308b62da351. 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/TWA870900405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c637c865e293ca26a523b83bfda8f0f02f98e7c81f6f78f8139242808a529bc. 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/TWA870900406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01951bfe73768e9b406df9be7c9da361d859184792b9c916491fa7c4d0076efc. 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/TWCT52433334.
人生風景（大愛劇場《幸福一牛車》片尾曲）
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e1d4642e91c0183c2459b8e92df4abc8b6457e0d064df331024687769713bc2. 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/TWA870900204.