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 0xba8253cd954bde12e3c02dc137404799addbaa365572dfb3dcfde4a2b9d0936a. Chain 2 (Bitcoin): anchored in block 953614 (2026-06-14T08:40:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/15a57272-ac70-4103-849b-3ecd1f4c230f.json and https://artists.proofprofile.net/proofs/artist/15a57272-ac70-4103-849b-3ecd1f4c230f.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 0x11227e91c8441de6f989130f9df7b4088c67f1f11a88d041ece669ac832a14f0. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/HKD012238626.
柠檬气泡水（《以爱为营》电视剧片头曲）
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x430225155305500c8c9c1d20653e152d953beb9166d93ca2f5d24e77011fec2c. 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/HKD012238627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9da5f4e6137fb7ed8c80ea159debaf691a8ca2c5c9cd169b206336689f5f1e5. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/HKD012238628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86c7a916eb20e91fa3e92dae4e5ca9d3f36dd32ac943cf744033bd5ae9df2d4b. 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/HKD012238629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe63c8f08a53172eae8a47b15e428bea4e17d7809ba47200cf41df90d13f58687. 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/HKD012238630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c3d5367acb27954c2046241f2e53e7fc8fbc504e528606ddf637a1817be36f4. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/HKD012238631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33e865676afaeb26cda748e2fa5cebebba7132837b7e132dd4bdb4fd33c6b988. 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/HKD012238632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3cc54c95c35668fd5c04c22358aea9333a9ffd091a653f4b45fd7e68e5f77fe. 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/HKD012238633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f23faa794c77e6f73396937594d35eb6d052726b8efa7011e803f3c3363dbbe. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/HKD012238634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb069584de3b12128710a5c42719366c8795f33fa62327e192b8a4f73275d6ee3. 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/HKD012238635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddccc8440447d4bd2e416bddb83195b392ec129fbdd04a34e6870a610d609ef7. 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/HKD012238636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69b34a8cbd795a700dee13d88923a806de3c63c2a563625b48c4fde796adf9f1. 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/NLRD51738138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b221169c8200667ca85f39c0fc78a30a89914e0899854af3b72804f912f35fd. 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/NLRD51738142.
我生活的意義不是你賦予我的嗎?(電視劇<我的前半生>配樂)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fd38e7952324337ce6c60883320355aa806c78d2051da784388120795382ade. 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/NLRD51738146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89d87ceb61fba74bd7755ed479543f042cefb074dce0572f3e02be1a7bdb289a. 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/NLRD51738147.
滂沱大雨裡 (爵士版) (電視劇<我的前半生>插曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8af13f38002f9cc0361be5cfaf603b2d3296232ab353127c4d0097316171400. 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/NLRD51738149.
我們..都再忍耐一下..(電視劇<我的前半生>配樂)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd18ba55f27e30ac6a99c3f4d0d2c677984a929e62039245db0084a6a943e2ab3. 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/NLRD51738154.
滂沱大雨裡 (磅礡交響版) (電視劇<我的前半生>片尾曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab3e52c853f3433e8d10728c8ff7041b0802e3cf620b26c7ddca44e8524bf160. 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/NLRD51738163.