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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x430dd6b00151258de570d088c7c55198384f1795b25be0741ce78d262988c29c. Chain 2 (Bitcoin): anchored in block 953697 (2026-06-14T21:49:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/736e751b-83c7-4e6c-a82c-a2037009cab8.json and https://artists.proofprofile.net/proofs/artist/736e751b-83c7-4e6c-a82c-a2037009cab8.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a94683a6301fc1b2ed68b2f4faa685c743ef7373a39863460f2d9f2e46dae14. 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/HKG731684567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf375791d006762354e2cdcdd193e163664a18a571b56570c67dfa6daa9a44b7. 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/HKG731678451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e37841b04ec0984db5637aec2f507ec21bc2b825a511e917ae9153679063107. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/HKG731617553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2150263bf16d70b1f226be8f10f2e4b6e5007d50fd7ab7af3de22e834321af1d. Chain 2 (Bitcoin): anchored in block 960314 (2026-07-30T21:00:46Z), 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/HKG732380722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2e4db23e455de741a701c39a09027fe9c5f43ee15e03ec2e52a42896ebe4287. 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/HKG732281124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00ded39c270b0e5d698411545c9cca0077b06c944ce594bd66a2241851197c63. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/HKG732313746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0720c6ae17aa5d19fe55f7ae2a4d877591356363b63fce83dd3502214739a29c. 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/HKG732375475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d51108b3f4ffd65ce53b4d7c27c0f6b1f0051f9d9d8d8df465ee5a4b4ca0f04. 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/HKG732483530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3b06555ff8f144178da9ffb76b99ff2a29f057949c2990f7ba96241292f1551. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/HKG731654983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04e479c2fd4dee7456443733260496eda0442e8d198636792759ab9790e01fd7. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/HKG731661243.
我也曾经憧憬过(其实都没有) [说唱版]
我也曾经憧憬过(其实都没有) - 说唱版
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x813bde3d10113b06c1b008c71aeae75bfa7d6443df2a64203e5f70488bccff9b. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/HKG732433892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x029e5841dbbe9b7289d2b223288fd04c51e47706d77eaba5f9e94b2ab0efdee9. 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/HKG731647309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99a6ee87b912a1d7b1ba806b7adc9900e0938b68970952c4334f6e9bb8576ad6. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/HKG732462896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8b56842e72e852a8d55af6aa3513fbbfe277ee2c098314578eea5f3c2eba296. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/HKG732313827.