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 0x8a19d98c01aff97e4d349f1382cda07697e8ac50992a97c54dae424213d00d13. 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/4dfed9d0-93fc-4beb-9478-1649441cebbd.json and https://artists.proofprofile.net/proofs/artist/4dfed9d0-93fc-4beb-9478-1649441cebbd.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 0x123fc1552e81e027a6d4624f8b894525293d9c69aa8a777c90025a04b9364b1a. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DGA052430380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5234f13ee797f55d8f6b1c9f05a7c01b02462aa3fab8986fd888788ce1f3954b. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DGA052342201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50be259afa0316d76d743990a7aecec8d4204eb6cc859be126ad36428fd99428. 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/FRX452296112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce11605bcc9e8b1e6436134543f85dd608df32c91482632d5511294d9c88a9c3. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/FRX452296113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x414a26d1fe45e7b6c9b6dfd53642f1c88125c641ff695b416b66a96eca0ca2b6. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/FRX452296103.
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 0xec33ce105cdef4623b676209117ec7447dc56661c69c295fc41a48c8aab761e8. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/FRX452296116.
全球高考 (非官方小说发烧友追星歌曲)
全球高考 - 非官方小说发烧友追星歌曲
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc675f3419c42219053baf3bc58773c51f91e9710f8a60f16eef11d3630adb4c. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DGA082408360.
全球高考 - 非官方小说发烧友追星歌曲 伴奏
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0979336f276a8533bc66b4396cbf606a4861492cea69c0854078dc6f69d02e74. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/DGA082408361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27b5967e6e10ce74caed73774bc299c0356208717c825a9c05eb446a9dfca0cd. 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/DGA062469418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c704a9780532656217feed91a81ee245bd8c185a133e562b9b1cd98a782e1d8. 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/FRX282430008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70d55236f70a16fe3d9d1a60db71c8d98126102f91acd3a84df6c3cd990410a5. 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/FRX282430022.
一个钢镚儿 (非官方小说发烧友追星歌曲)
打火机与公主裙 (非官方小说发烧友追星歌曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53169f8acccfa5d8fa91aa253b04fd70fd3a23dedeae13b855f2620f20ab964b. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DGA072279627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfd2d9543e876c2366569a76aff9231275a349391f0923f05f084f4dbae72f6f. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/DGA072291806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcf2359ae493027c87b47f5246f5459efeeb8605bd37c0ed8243959801d9c8b7. 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/FRX282267642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf1e6e646efd5b1ea6f94662d42616287304443c400c8757867350af707c6309. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DGA062222125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cc6150f38dd89529b0dc2ccb01dd2ef207f8c50b772103f8e6b3e4e4da2a22c. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/DGA0Q2442902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cc6150f38dd89529b0dc2ccb01dd2ef207f8c50b772103f8e6b3e4e4da2a22c. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DGA0Q2442902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x394dfcc4720c044ba6a26086a9a9c8cae6c34decd9f6017386ad622a4687c466. 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/DGA0Q2427939.
Remember Our Summer (Orchestral) - Fifth Anniversary Edition
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56b1c4cec79afec3b4f2e931346d6afdca7158985d03155f8fb850632f1b70da. 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/HKJ962415454.