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 0xa203d4f5f2763db8d458d8cabf2848304a130d13982a1d4f155773d76a87a940. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cc759d0d-03d7-437c-94b1-25be3c9c7b56.json and https://artists.proofprofile.net/proofs/artist/cc759d0d-03d7-437c-94b1-25be3c9c7b56.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
《失去你的那一天/The Day I Lost U》偶像劇片頭曲插曲配樂等原聲帶
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 0xd28757886691c6ac17be27fafee2d4793e2b30d80654de0272f5c20bfdba895a. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-22T01:00:40Z), 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/TWU651501002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x757a3fc7d8158cf85875aa41a457b5f12760c6b0c4e79024aa4fd9531c9551c8. 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/TWX351500106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x376aa082a2c54f84fe7be66886a25f253258aac3945008e52fa15432dd79b3b6. 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/TW2152060001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5c47f098e53a28c956ecf779820b9903374b53d99f02ec9b0936a3a23a5f30c. 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/TW2151910002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa316541caebdb4245528f0f9bb672264c7ac8d7e33059f278f6de083cbd0c515. 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/TW2152060002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x169a79a3a6c9445ac9fe9d6ce035510bb223049f235b84a8b0f718e2a600596a. 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/TW2152060003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe195ad5c0d6251929b4d3dc37ffb8088772d7034daef55a280d8e046b8ca7b2f. 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/TW2152060004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a2d0b1ab762ef2d6d0785f9f90ac426d1314ac5857e47112a673c6b29ad1efe. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/TW2152060005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48ca2442eb25bf43e2317127f7a1371deb425f999b576f8b3a6f46a3d7c9b7e8. 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/TW2152060006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cfb70805c61974aab9735690c6e08d33a64dac130ff01be74933418703d91dc. 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/TW2152060007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1216b8c44bc8bde70529f1f07b4d25d306d9dbb0a43a84d2835b7fc794572cf6. 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/TW2152060008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05647a22301efd3d6e70c7318f26afa39f30ac2c43fca80dadcb32203802d228. 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/TW2152060009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbfd756f540aaea2a284cfe01e8e48904b8530cfb6ba2070b15536b9ed24eab8. 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/TWU651601031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf899a998bc04adcfd2bcb7af9579a448bb7bdd9ce7666cb6c2edf0d349a66196. 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/TWU651601021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd28757886691c6ac17be27fafee2d4793e2b30d80654de0272f5c20bfdba895a. 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/TWU651501002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a1f670ba0b4e55b8e84a8f896ea5cb2f8315bfede450f7c54c51899b3a23d3f. 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/TWU651601025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbde14244e65ef9bf82873dbd63cd48eb76f5af2ec7695b84b99d3381da70cdf. 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/TWU651601026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4cdc27c9b824d7829b1558c4dcd85e008bc15f2b69050871e8fdd9d3d983e4b. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/TWU651601027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe195ad5c0d6251929b4d3dc37ffb8088772d7034daef55a280d8e046b8ca7b2f. 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/TW2152060004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5c47f098e53a28c956ecf779820b9903374b53d99f02ec9b0936a3a23a5f30c. 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/TW2151910002.