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 0xe4fcb17a64310b25a5c97aab1fe7a306759a1377908c269ff88519ae5d2c9b95. Chain 2 (Bitcoin): anchored in block 953758 (2026-06-15T07:48:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b54d5914-82ff-43fd-a633-49191b872ee1.json and https://artists.proofprofile.net/proofs/artist/b54d5914-82ff-43fd-a633-49191b872ee1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Girl and Angel of Red Shoes (feat. GUMI)
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 0x5e768f58376debeb2e9586c597f9125a6bf019647504dea5fc4bf3cb636ee113. 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/CAENV1728465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90d85bd16606ac99a72eb30d2f3da07685435aacc1ad1b2d77aeb2de99b23d4f. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/TCJPB1441770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa7948d13cabbbc68a99e525bfbd20f31601ff2135daf219ace92e2b4fec3a17. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/TCJPB1593228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6513b31be158606a4c6c4bb89148ea52c4e57e3ff4cd2ce5a0a931c9ac41f684. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/TCJPD1567844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a8d6842195d4aa30d08eef0610ae4c1dea1a079b92dcc40d388c922987d887e. 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/TCJPB1593887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd71e3dfd079314adeec23a2e447c84b99018af9ccbada549bfec4bd340b93894. 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/TCJPD1532917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cc1cf0cef6c6066d451bd643ee02f21ae99193c0384c852c1c763ed3a9daedb. 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/TCJPB1462569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04b81fb7e6a336dcaec7d04fd8ccb865e0903890d44bc26cec25a757c982fbf8. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/TCJPB1482716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9e50195565de76489967ec9af2bee1a5f49fe14a5e491c0bfe47af21ee5baa9. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/TCJPF1755233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0d06281372bd9bbc704a11cc8d74d49817a26b492700bf77c83ce90bf5da3d1. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/TCJPG1895629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23d099bbffb1cdde85ddf932f04a16807447ee9657faf20690868bd9189680da. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/JPE561810546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x039a56b1d91aa737850389b0a69c98656b7092748f53cae1925642e58fb8d3f2. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T16:28:09Z), 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/TCJPW2356863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb90005af7a7c6dc53d50c4456dbaef8e244e00ae49558607df34bd661d21777. 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/JP92Q2325411.
Kawaikutegomen (feat. HoneyWorks & capi) [Cover]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x020aac7f7b3f683033bd0569340f1772ecd6eb9c5221c38616bd5e325f69718b. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T17:43:44Z), 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/TCJPA2435061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x020aac7f7b3f683033bd0569340f1772ecd6eb9c5221c38616bd5e325f69718b. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:24:45Z), 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/TCJPA2435061.