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 0x7f388ca14d7c3f219a432b1fa37a09b41673d022250dcb1708531bf655c9c8f4. 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/3bdbe2f3-d48e-4ea7-a6de-d9af0276e5d3.json and https://artists.proofprofile.net/proofs/artist/3bdbe2f3-d48e-4ea7-a6de-d9af0276e5d3.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 0xd5fdf943a909f0478e03c81880074ff51dede4ddfa77203f1388f82eec5bc7b1. 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/QM6N21743325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07aa40dcb161a6c018fcdf89ccbea8d3e66e25a109fa08c668beaddfcacd5fa7. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T18:33:06Z), 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/QM6N21743328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4d093128be16d10d994fa03640016a2ac139379ebca06c4f8f9d17d85c00fd7. 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/QM6N21743314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9de5c14a7a27507e5d5c6fe2edb51402dedffc1164eb299db84cddfae0916dcd. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T21:45:20Z), 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/QM6N21743316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65046e1100e275fd1019f8bb0abf968aa4a726cfbda37aea2cbc85dd2e444f6c. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QM6N21743291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21ea76bd888dd62e091b61e4de1fe6c96fe83929cb307e2ade88e29d82b3e3f3. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/QM6N21743320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bbbb3d1514c00e448119a39f6749a84f0d11796cc75102dcea8e5588e497e4e. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/QM6N21743288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaecbf0926bdc496569d4e39bf8399ebb6cfc2b417ada395ec469d0145842e412. Chain 2 (Bitcoin): anchored in block 958491 (2026-07-18T04:29:42Z), 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/QM6N21743290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3cb79490fbed86db7ffee2fa55837d21dea9527d6cb54dafd8b44f30425d8c4. 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/QM6N21743303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a6b4a7fa4c6e9be191895d2d8bfa6b4346bdcf20b3ce3c33c82fc789d547266. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QM6N21743304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7491c911a1305c3679e9b6fdee6f01d3ea24e8bdf5f1b28bfd68ee3218bf8de. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T19:10:36Z), 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/QM6N21743309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6beaafe8c59db1a2b8dea87a71e375c61ab24df9fd819cc18a0c01620beb308. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/FRX872147540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7eb1263556db8228b50a02bcf8a169699a40dc0f87f031f97d184fd39dfbb800. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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/QM6P41799460.
十年之前 (電影《親愛的,我要和別人結婚了》主題曲)
十年之前（電影《親愛的，我要和別人結婚了》主題曲）
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbdf4180c537a62ece56a70d24d5a62ee0c58e2f9a9d9f50ea9572a3c325d18a. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/TWDL72010965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40b9bf36aa52dcff243062141af1cabd907beee2a2bf8b160307071235b82641. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/HKG731674184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dbb0b5cec32c3a4980e9cbbf9ea66f28180775b538399668853625cf5680485. Chain 2 (Bitcoin): anchored in block 958069 (2026-07-14T21:37:55Z), 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/HKG731675310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac28ba690199afa182ff1e6d5cbfb7afdd2c2464d238e3e2e5ecc349216b7895. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/HKG732490919.