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 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 0x54546fb98e86163fea0595b448a9aaa9368dc9ca87dc4f9f89891d5a5c270326. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8a80a7c9-00bf-4ca7-a588-0c23b05a81cd.json and https://artists.proofprofile.net/proofs/artist/8a80a7c9-00bf-4ca7-a588-0c23b05a81cd.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 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 0xd43a8b578452ca83d5aab7415d4b1093788eb1ecfaeac7533c69e57c38302985. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/HKG732158631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc879820d3f8ce942bffd8c61c5dca3847b6b970ad5dc8f471391615c19f655ab. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/HKG732341608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62ee2f3ee687e30451ad13757521b84cff50c477c109c7bb8705a0ca70dd3617. 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/USUYG1277733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8232ae6ff6409e05e09ca0c9b19a2d1cb220858a5137c253e97c3c140749f7a6. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/USUYG1277734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09657d0eac8df46e665eeea3312e98ca7d9c2f7aeefb8b86eee185844d5bd98b. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/USUYG1277736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b021ff95899c126925584469aa15e6ed38c1c018712fc464702b87892335cab. Chain 2 (Bitcoin): anchored in block 960187 (2026-07-30T01:34:28Z), 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/USUYG1277739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c957a57b14927859106b4f763e103ad00a130d88356496c45cb4179043c2b35. 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/USUYG1277778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48fdc852c9ec52e50897f0029ce4d150f51e453acf365f5a467b8c533f0bfd5b. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/USUYG1277782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac773bbe55e0eb0056419406610700439388628d6618a4522aaf07e82d22f880. 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/HKG732358790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd08ba383d92abf7ee2beaae57844c7d2462e23c588c941e5af4ad02805c0c920. 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/HKG732358791.
Barong Family Worldwide East Asia, Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe31432c2387bb31a5bb27b764c0513f4b6f560289185eaa87b7457fc1dc072e9. 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/USA2P2400231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x122c92eaa94253a65d56d79752800c560ae4af61ed982a096478cb0a8f32307f. 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/USA2P2400229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9590aa3e56ed1c46dbaddce5ed0414238b81a2e421af53dc096261158e0375e. 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/USA2P2400230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97dc79851cb30a290fb8f681cb08bdd3c8ae82931779022511bb1bbb0b00a233. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/TWAE32402362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb657829707ec3177af25adc2cdf265d53c3e685aa6881897f8d8ab66591ddf7. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/TWAE32402861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61f712d3bb88fae78c45b126bea5b7e35dfd7810921c7c8d97e6b95aec06b3c5. 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/HKG732141559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9858afe02d2a338132d939c49ebd827de3788e8dc884afe600aad381232f5d76. 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/TWAE32402419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ef4ee667c448c5495ccf323c5577d30a3b3436bc0df93d083d596df6a771f85. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), 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/HKE022371603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x024c79733b0889c9f7b12251034c7ca82a92124077f3c26c9a4ad473fa754bb6. Chain 2 (Bitcoin): anchored in block 960181 (2026-07-30T00:53:20Z), 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/HKE022371604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5c41bf0bc00652d4f02e703f1eba8433ca4c5f07eb441dccd9a09065ba14b8b. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/HKE022371605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01d756534fe54e75fdef0408d0527dde9ef81abbc85b2b49d22123e9e50bac4c. 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/HKE022371606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2550e0a1d92d2c59d9c4ab3cc78f6ef10f2eeeb7ab36b48b1f236ac123361305. 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/HKE022371607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf413310a76c258b665f8a56e5439dd956d4e5a90779419843896ee79ccab0dd. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/HKE022371608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd2a1210eb98b3096f4c7d7e756dbd52b22e9698af77393fc1c76ec05c96efa5. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/HKE022371609.
All My Fault feat.Arthurnevawakes（這一切都是我的錯）
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ab537169f5663fb41d61ca1e6ef0bf869a4160394ee16dbef9e12fae46302a1. 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/HKE022371610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x941208ecd1889f2ca90bc5f8a22307f900fc55324a955957219aa9c7b015b802. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/HKG732530336.