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 0xa0b6d030fbf7d650257fe5c557cf82d782391f62354579f1b7117227e4c059cc. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/155faeca-d97f-4ce4-a86d-0523ae490fde.json and https://artists.proofprofile.net/proofs/artist/155faeca-d97f-4ce4-a86d-0523ae490fde.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 0x1744368d70d69fd7ab5bfae94548624e656ab972a92f5f33afee85b3a9c87ebe. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/KRMIM2181056.
Tech Fleece Freestyle (feat. KHAN & hangzoo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x774037a3c58a7e5255e161f1a103db7e1261821a626169fdc5a5b63741efcc77. 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/KRMIM2217371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6525b36883d49045494eea3211f49b05929f5c8a1ef15f71e21ca746e604df15. 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/KRMIM2217374.
Love My Life (feat. BIG naughty & Xwally)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x883c7d8455174f9c4820b51f97114546a6ecb83e2a59ff43f16e576d995427f3. 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/KRNAR2204558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2cba1fa671a002285df02a09b1928f3f82b0c7620ffc7cc0267a834e3ed51bb. 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/KRNAR2204559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b2937fb816689549e61d7dd2dbd1a7c2f091ad218a7b2d600491dfc56351a8c. 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/KRNAR2204560.
Girl's Remedy (feat. Royal 44 & Leellamarz)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa6b43ab991b59b5adabf3787982c8ada0527fc9cd83e02a674d918d3612ebde. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/KRMIM2456357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26be6a1f737996d6caf9e9a8d7d057433196449b4eb5c383389842d6a82aae9b. 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/KRMIM2456360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4a0006740095f3906581b4017b68090ee0898e8f1a6ea4be29d4332312d9fb1. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/KRMIM2546642.
BLUE CHECK REMIX (Feat. Blase, 365LIT, JUPITER, KHAN, XINSAYNE, Roh Yun Ha, sokodomo, KOALA, Jambino, Lee Young Ji, Chillin Homie, NSW yoon)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x440de22905269ccabcd1dc3cabab0c7219af68ff0dec05538f9c9c960cd44137. 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/KRMIM2301626.
YOUNG POSSE UP (feat.Verbal Jint, NSW yoon, Token)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd426f5c531aec6d67c9601882bed241cc0cd499a7bb9c6d4aeb4f00f38b15d2b. 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/KRA382400801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b242f6765988fac6b6461d16157307197b6c30711bb3fd0c8a8390f0cdcff4d. 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/KRE132300016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03920ca7addf2108dc2e7ac828cb951a1f10107774ec8c32d19a06e974a9a902. 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/KRE132300017.
Moshpit (Feat. Skinny Brown, Blase, Lil Moshpit)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7984b0ee9b4a17694756c3871545197b8e173a823202eb47faec0e25f59c73eb. 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/KRE132300018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb209ff3a4bf175fe56e0b8f168256311da8f982de61378e89b204bb8e26c66f. 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/KRE132300019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x055134d479c4bee4aec66dcfaa379d3086c5e93e90c9aebec4d3ab3312511b5b. 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/KRE132300020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61ad9113d5de98fb4a8c018b5fabc4270d0a091a7f0d2411832caa3eec4819d3. 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/KRE132300021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c738351d76aad5cef6cbf73e783be95e9332437abd068ac817dd782b1d9c8a0. 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/KRE132300023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea61a85c5d3e6a6210f608b460a8a1281dd5affc27bdd66572c3e1a20141e282. 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/KRE132300015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5238490a1c6565c9ec1e78f0450ad40202f8e78a3ac24cb91ded8e8b63722843. 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/QZTAU2285038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa086a41170b85f07062eda4065d04bfa5cf098ac0cea9af6fb8c1b42690706d3. 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/KRE132300058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9989fd7ed366d8702faf967baf4361a8cfe2ef2afaea5b46d6558d2296ace119. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/KRA492201238.