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 0x140186ce98a718c3137be9a8caf54a8ca46eae841739073b5307a97da35041cc. 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/5c2a6cc9-3f39-4025-a390-3bdf1e61650a.json and https://artists.proofprofile.net/proofs/artist/5c2a6cc9-3f39-4025-a390-3bdf1e61650a.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 0x3b9e5c04424c93778de63eff699c6c8b5ad6a9e3d224f04d5d4e930eb81cada2. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/KRC391500254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x449faad3a6b6b3ee06c0500f873ed756c886f53ee5fb597c50a51464e442200e. Chain 2 (Bitcoin): anchored in block 960175 (2026-07-30T00:16:15Z), 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/KRC391500255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fc38be0ec4ec733189a8744dd89aaf07ce9696befbb947c170967781a3252f2. 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/KRC391500256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ff7b354063578251f79374a2109891b468941b0b39170dc91da448418a2d949. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/KRC391500257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bdd09f35e22da6ea9f9e78d801e53796dfc9d1e3aea87481a92e1f6c840b7c4. 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/KRC391500258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ca8b26f51d04543ca3c7c763465211694ed5434725c7dde51e26a433f56a0d9. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/KRC391500259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd57203d42a1b1d72d9ce53fb2da44e5c4d52e29e524bb74ebd9a7fde24f51d3f. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/KRC391500260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4819939242ddb149681d7fc252c5df4e394c65f80f282ec73418c5238392c53. 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/KRC391500261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07155e6f79701365550becf22710e5795812ad429ed515ea26fc32904d93e781. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/KRC391500262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad80dceab3b0eb259b2a93367f79a0d86ee1c69113cf4eb786eba56b337a7cec. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/KRC391500263.
Do Your Thing (feat. Paloalto, The Quiett)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4c06b23b4a4c06ea7c1405f7059a23e366b255ef9a6c9e766ef92d5e7a05b74. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/KRC391500265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2991ff5900277ddf19d32ba88ff58063105644eebf0cfcea7a6c4624dc91bf4. 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/KRC391500266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3099f70084e40829f7a351836f6eae2c09fce9eb733abec259a52125ba05709f. 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/KRC391500267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x992d6734c15cd5d82fc1f1587e573747703032a1db636887db092c4f57115faa. 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/KRC391500268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb09c2710ed0de9281e3ccc8687a12ddaaeea048bfa1bfe09c59b924213abb110. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/KRC391500269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80c043a553ee60f5794791fc7f27d24c603211041b945bb712b06dcc29c77cbe. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/KRC391500270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73f34ec969654982edae2c54cbf782ef8b02d7c633c3972a64a34e1b05dbe208. 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/KRA351507475.
WHO THE F*CK IS U (Feat. B-FREE, TAKEONE)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33ea0c3c22d8ebec5013cb2f19947b23e7b3cf67623dd380525beab5903dab8f. 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/KRA351404289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c668799d10f10cc49a7509910a24d8bf071d432611442e4f6ba0d5c2d45246f. 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/KRA491500735.