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 0xe731a66c0c0ba815b80976adf16baa43539810922ddc41a76bc83ce89fa70e41. 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/3859c505-9963-4154-a7ec-09175cc6bcef.json and https://artists.proofprofile.net/proofs/artist/3859c505-9963-4154-a7ec-09175cc6bcef.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
仙侶奇緣 忠奸老實人 (電視劇《仙侶奇緣 忠奸老實人》原聲帶)
正義柔情永在 - 電視劇《仙侶奇緣 忠奸老實人》主題曲
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 0x725de9e7a9d4e1cf3c3e1061f63624b232ef27614f7c1f63bdd59e5d1957fd1a. 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/HKG631891029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7496421e3267740564cbdc008c485cb78b37f79123de7e645c5cc834858274b8. 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/HKG631891034.
仍是痛在我心的你 - 無線電視劇《今生無悔》插曲
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b3d87012c7d4f8df6b76f2e3bbca77cc20daae4fce674a87545b5474a9465a5. 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/HKG631891017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf883047994625a330a6e3db750e5e8543ac010ad5a93a829637cfe9098662f07. 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/HKG631891001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d791567fb6719d3df5b6a0c77afa5fa342a884da5ef6ad16d0567579bd6e584. 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/HKG631890001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x638bfa3a66ef35025f617925a44a04f3f2a37aa206f25c07ad330b1829cd46cc. 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/HKG631890002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51278976b93bcc6fb8b6831f77099fe8ba5348804fd3bde35fbbac561af33199. 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/HKG631890005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c09e9c6e832bd565babc0c2e37de38eec9cec0bf0defc7509fdb361f46726b4. 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/HKG631890008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x735fdc0eec7af917e264b1f780fdb9b4b65624e67b9caef4b34baf92f1aa9e79. 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/HKG631890009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e59d3d55794c4e0dc7478c8e4587c90afd76bc98a3ed5f8a2888fa4a5c7288b. 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/HKG631890010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c120c3bb2bca6035be7bd8bb9f64640526ce332c05f40d03a68383b1f5db9bc. 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/HKG631890014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b60d8b0305dff158ab63333262025c2e8ca0494a75583743f57ece25aeca9e6. 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/HKG631894025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c5e365280f65d8aada5028065d102cd9b2a9c61361fc6a6d354135f2829ec1d. 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/HKG631893025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd722b9b105de25493be84c85dab11b5a9c86ab17e7901b8b8be8a768a1e807f2. 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/HKG631892001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd722b9b105de25493be84c85dab11b5a9c86ab17e7901b8b8be8a768a1e807f2. 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/HKG631892001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc82582e6112945855a98ce3a3e006ac19900058af8b5d05681849d334d51278c. 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/HKG631892006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa52194bda1de9537d25896baf850479ef6c7db88174bc03bd9a16320d5a9c7a. 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/HKG631892012.