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 0xd95bb0b7730ff1e6ae98a36a4b5eccafe883e5c4755a6233e52c256ba145a8d7. 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/46d4ddfc-4518-40bf-9896-27a2212ff0df.json and https://artists.proofprofile.net/proofs/artist/46d4ddfc-4518-40bf-9896-27a2212ff0df.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 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 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/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 953536 (2026-06-13T17:25:41Z), 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/TWE771988084.
愛毋是一種罪 (三立戲劇《生生世世》片頭／片尾曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83b6002c2dbae4edc44e28cfb769706a3ca199efc679c9979f06803d9d0f772e. 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/TWT952100051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18392774e81fc8a3892a6dac26b59339172f16e5f603d2072107d650e0dae6d9. 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/TWT952100055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a20858b6639f5dcd3a12407df7067109f0241a74d3ca3c37ec1a116d038e71c. 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/TWDQ31712001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c4405503faad93c918cf7278c8e09ac9a2700c212a68397899414efca6bec96. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/TWDQ31712002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdd55e8421d9269559a690d133af2f5130b0209eee720ab6815159c614f485ae. 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/TWDQ31712007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd17030d30510f2c7c8592a2da95c654b8804f7a2659855f79e10e8d7de7e311. 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/TWA270917002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd19a66657ef75f85bb1536b26eaff2ba6696805fb888676eaa2a0fa1d37d9454. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/TWA270917003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x342869fd1e0b670647d399c1cb403c11f00e50b9c728a0f6447ac2cb2320b4c6. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/TWA270917004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c8b3a6e5d3302e0b465ebd7b000b8111ed6297a3d90eacdda19465451c0939d. 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/TWA270917006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8ed7b0a04bcfb1e0c04d81a0b1d372ac82b1e7392788b3ffacf34a23b74210e. 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/TWA270917009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fa87b579c5f03f2a0b085b265f7ff2b2e504ba96bb4bac9811584f28aab1451. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T20:51:46Z), 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/TWA270917007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a20858b6639f5dcd3a12407df7067109f0241a74d3ca3c37ec1a116d038e71c. 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/TWDQ31712001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa833b8cea15796520871b2698a3eb5f8ae4e2537cb30cf1e661c05bf9d8d76af. 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/TWA270816001.