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 0xf5e4c9161ee85226223e32f4e8f2551eabb3687f217a385713b4abada136985b. 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/304ce617-03e8-41c4-a989-f248980d4de6.json and https://artists.proofprofile.net/proofs/artist/304ce617-03e8-41c4-a989-f248980d4de6.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 0x3fa0f40e59f448c95153b0347f29bc445186eee997886588f31a0379fd84bd56. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/KRC711800034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x888db3908353df9a9baa8e3f937fe56dcd256a24ecdf15c704e68c8da14cf403. 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/KRC711800037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2beb86250dab395f271af77c46ce5b694dac7fca9276b31f9fffd5b38ba3da4. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), 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/KRC711800038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa32b63b2980a1f1ac478e64732c28c63cdaa0ecc4b0dbc29d25f6a018bf3478d. 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/KRC712000054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef95b8e8d11a9ccd450a99bc34dcaf344937ad89aa95d828ecc467fecae16ac2. 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/KRC712000055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04d3ac565935e92432119f5fec28fdccffa99abb65bf7d362309889b1d1edafd. 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/KRC712000056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x081c6343dc8f607cf6cc1dea97eac35b62b78ad29956560451cce4382f3d5e4e. 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/KRC712000057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc070a022f257deedb76244819e58f0689e78433be4484eb063266e519407771. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/KRC712000058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96472bb97ac275ee61b5b3df54e45c3d056fa97cd28a3fb7c0c7690a907b65b8. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/KRC712000059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56b117a3bcbc27ad8763ae70736b74c543a7c72c85af7e8958e6f33832e5df60. 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/KRC712200031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b08e84ff2626b4a4d07c091f4aee7e4febf2258dd2b1302f32cf84d1cb06381. 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/KRC712400015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b7c89e248e93494f92f1d3c300f2092ca4ec471c2eb96029cfb186ff44fcf72. 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/KRC712400016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa96f5a70c957fba312ae1329b683ab4c4d04ceb8c9eb4767670df139078f6fb1. 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/KRC712400022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x211042dafff8f168c6128b23398d751ac5ee9184f0ec9f1c54aa9ad0b86579f8. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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/KRC712400024.
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
Twisted Dreams (Feat. Jay Electronica & Joe Flizzow & DJ Wegun) (Prod. by GRAY)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x993dde7ba5e6ea091e780812790eb68059cbc6486453da6b46b877af6487c767. 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/KRC711900027.
GRAYGROUND Cypher (Feat. King Leez & Anthony Danza & Keem Hyo-Eun & pH-1 & Geo of Blue Scholars & Chaboom & DJ Wegun) (Prod. by GRAY)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc563078f9fa5f92d8704136fd3669beee39165267e44b1040653a7b43570e4ff. 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/KRC711900037.
CHA CHA CYPHER (Feat. G2, GIRIBOY, VASCO, Dayday, Xitsuh & DJ Wegun)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b8ec0c3b5547c5915999524f6fe93182157b4e02df9877857e53ff32564d37e. 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/KRA351507473.
B-BOY STANCE (Feat. Yankie, DJ Wegun & DJ Friz)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a09514cd33d93240fe1f6045bd66c031faed340fc4adad48b5df4a8e6b9990a. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/KRA351507478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc045c8754bc372b38e00136004ad0f62f1098d21e9365e5b25d43cb203216a96. 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/KRA351507479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a4610520a6731fe38f873b291d1ec40c6c4d9ce071701f5d02aa40a0c7c2029. 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/KRA351507484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd5bae56926111272014d17069d723215a1134c3f93236f24fe23ec7a0874fef. 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/KRC711900051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9ea8e3b8deb22f2c0a6e3eb636913028fb4a0ee321f79274bd86c0a4a6197db. 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/KRC712100001.
Meet Me When This Rain Stops (Feat. Hoody)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbb8c48c140f5a0aa0fe7adbc9c987325b4fc64585856d6931daf1d596d06cae. 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/KRC711900046.