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 0x82ee77304333bf41b994dace79d325452c9a284a9c83e405408941c286007611. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/99be8108-444f-4ab1-97b0-01c2c5d1f1b1.json and https://artists.proofprofile.net/proofs/artist/99be8108-444f-4ab1-97b0-01c2c5d1f1b1.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 0x7080b413088edbd60eb7533675d2aca7cb86717128a1119ca6b358a63665afce. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/HKA411700070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4d929bf3851e17557a81bde876e41b82d8b177f7a828d67df95440881793f8f. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T19:19:16Z), 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/HKA412000247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dae0142fcb8ab5529afb5c5d38961cae00a778cccaba9a5706934c32ef0a965. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/HKA412000282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf13f321e964045566f64b10ea4cdb671ee0e048393deba0b6ec49d2b2b3a5763. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/HKA412100077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5373df68c55ec3c2e68e14c12f03a8eb90a9f3ba357c7489d362b2ef39d50436. 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/HKA412100126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64bae3c25e1031a7e4f9eda2184ef702f4582361684cb3f353f1e6cc1f9b4d38. 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/HKA412100051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf13f321e964045566f64b10ea4cdb671ee0e048393deba0b6ec49d2b2b3a5763. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/HKA412100077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dae0142fcb8ab5529afb5c5d38961cae00a778cccaba9a5706934c32ef0a965. 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/HKA412000282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd14d601387d6607aa75212c621fabb12dbcde0acb32acb27c738ae6583faf2ae. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/HKA412200048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b7fb25cb06c67a1ddabb785f3ac5942a13269ab8c1a778d5f0b409695410ee6. 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/HKA412200140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbda0f472af9f83dd6c917af2f52236c8b3173397e317a49bff92f16d146ec5a. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/HKA412300011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86d1b5b9a41bf6ad77978d17ec687927b1edac16a04f3c81b00929888bcc8696. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/HKA412300206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbda0f472af9f83dd6c917af2f52236c8b3173397e317a49bff92f16d146ec5a. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T08:55:39Z), 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/HKA412300011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1471128209bb5e862004b7234d27672ee2b56ce42d037225802da1dc180e8c82. 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/HKA412400387.
相伴 (守護版) [《一束光：高錕的記憶》音樂劇]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe89ab9aaf40b4d58cd7279d11203d5636d811762ba677c5c5bb03eaac1af44ed. 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/HKA412400083.
盡頭重遇你 - 《為你鍾情》音樂劇主題曲
盡頭重遇你 (《為你鍾情》音樂劇主題曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d11a4384fce4aeb9c6c724489803157e326b131fcb80a1bb1368f49d270ff4a. 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/HKA412400164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e69b580e5ade0297923a975adcf5805fdc056b6379df58e7d2c3344b806b5ab. 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/HKD252200095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1471128209bb5e862004b7234d27672ee2b56ce42d037225802da1dc180e8c82. 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/HKA412400387.