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 0xf5705d4da2b32ee7cfd7c5629071f9288858fc76f7e5988fb1f8fe567ca187db. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bfa78033-c643-4dad-bb20-f4cde7c4990a.json and https://artists.proofprofile.net/proofs/artist/bfa78033-c643-4dad-bb20-f4cde7c4990a.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 0xd00a6eae4bf7661f4023fa9f3b7c5d8c26dd360cbd06387b57fcbeac10ccb7c5. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/KRA341560863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe44518b2174b5adb0578f6a9ad71cccd351d549055695b646282ecfd22051ffa. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/KRE502000062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b3c8efaf9f35784754565aab56616516751d670c3833b7b4c132383202e2597. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/KSA012122879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbff68868d37249b80629fa333a19c177b6bb2d74cac9d23247ce16a7c4bbaf20. 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/KRA401700035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0c5cc513f234a44731d60443851f17a8b07d1b3f5324c49842fe230f697dc01. 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/KRA341519792.
Visty (Feat. Wutan, Hwaji, Deepflow, Don Mills, Rohann, QM, Big One, Nucksal, Odee)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x398bf854b7d98797ad54e2954b856d7eb2d002d0066f7c58de0a9ced4177804f. 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/KRMIM2444262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ba9f992a2669eccd1e0ae871ea7cc0a776eb43817c158f5ab184c3aa9126e4b. 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/KSA002300175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d0ebcda16d24bf6222008d7f89a29d18abc95036e03b221773888bedfeb08e8. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/KSA002300177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29dc0cf02c386ad01a6682a430af7fea6a408bffd2c3520e4a6acc3a7128e9ee. 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/KRE502000064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x949cb41e2c09b2803e407a1fe2b0a94810f3b1234541ce077776963eec60d6cc. 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/KSA012136748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ac57b651b00a1743ad72b45282c06f14dee63e591ca3159500583227f0ff378. 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/KRE502000084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46708951c18c944060446c219e488b51ef2ccbca19a2f0cfd350a5fd94b17495. 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/KSA002100378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c16cda95555f7d8569fecc70f765770d92620a188e4e8d7d06b7f3b9538de17. 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/KRB471800463.
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.
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 0x2b4b71769cb14c1257690f6f4e5b07f268e2bd4d3ef6b0f456e3dbd122847021. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/KRC391600033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9608469617e6a5dc0b9dd04bc8c3c3f03367ee0d59efc31b4bb28b4d0ef5b243. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/KRNAR1705105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1c9f7b44e83a8d7542e06b5caf25a62b348f9b1f1aeccd05886dade7d59d29f. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/QZF452001646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaacfc883d685c580b6fb1d641444a71075219b85950522fbfebd934f255bd32a. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/KSA002402773.