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 0xdf608741727e034721058136f1a04a2b1f8bfc3ba7c97a8c4a1af63439a35b33. 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/84c95773-66f0-48d4-9477-d953b5fd5bb1.json and https://artists.proofprofile.net/proofs/artist/84c95773-66f0-48d4-9477-d953b5fd5bb1.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 0x9b84a4c7e992de06c3ae766e6db12c29475835a2799fa95da7af4e5520b42c7a. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/TWM071700501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5313f10f45eca257fa8bb2dfbe21b61fcb6c438df76650c4f469162aae7dbef3. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/TWM071700505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94c7176753e41805b7aeee06dd20630e315fe1a2e63cc021b404ba3e36fd9d32. Chain 2 (Bitcoin): anchored in block 957892 (2026-07-13T18:21:16Z), 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/TWM071700507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67409a3eea4a4ba8a47c09e5c035476283c197d77a38edc236928ee0fab58d7f. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/TWM071700508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4d75c1e7432fc62c1a8c7938254647e9f96b81a074878071f108e0fba7bab40. 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/TWM071700509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc231ff2dddc86c2eeba110620e9aeead1b94e9f50efd773e09cba13e966b193c. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/TWM071700510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe902c097080b547248d27af668291f4f5ec31dfa0b4642a53dc49930dea64549. 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/TWDH51703608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb5b6031ab73f7d3c558c1f1d130870e300bf714d61a683993250248d2374762. 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/FRX282171351.
長大是一瞬間的事 (電影《夢遊樂園》主題曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52c0c189a5aa83883370420dbcff405ab742b3ef65dadddd3496afd9af11471d. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/FRX282307127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbfa76ee7e9271f1ca5dc485bb687671a6df46c33a7b01885da19e2666d12e0c. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/FRX762362962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0db81071aa772eaa58e04ac323a30b9a811b1ae28b9811e318d75f3a0592ee2f. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/DGA0L2462988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3fc0ee6c9b4759e0dc3637a3e855f2550b9ee455f161e0786a3584d7ac5e672. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:55:42Z), 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/DGA0R2408255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9dd78a49ef2fd7f030d67a9ceef8087a8896010f1b37d44814c3530c307a1f5. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/DGA0R2408256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5f51213fd178349850f66c46edbc53f83b6431ea73667175959fad6e4fbbc23. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:45:41Z), 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/DGA0R2408257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7fb6ac6d28371b3e289027ebddd392ba1ae66205e5716973920f2ec4525f9ea. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/DGA0R2408258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41e62e62bbe770d77c9424bc450661e848e3df3e4ccd7d4f088a22c7b3c67f39. 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/DGA0R2408260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb76ad74492d3bbe9a2da8aa2c45e67bf0576603c0b5d31dd107d833486f0bf57. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/DGA0R2408261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0db81071aa772eaa58e04ac323a30b9a811b1ae28b9811e318d75f3a0592ee2f. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/DGA0L2462988.