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 0x66c55f550f951ae8ecfc05f1b8cfca89e89d86b3096da79290b58c51b593f3b2. 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/b0e97c61-95c9-4982-a303-8ed46eb4bb1e.json and https://artists.proofprofile.net/proofs/artist/b0e97c61-95c9-4982-a303-8ed46eb4bb1e.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 0xd9479c435bae96147ee59949f6a644b6300e727656d1308fdd5ecac0b99d85f4. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZTB52365023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb124de14c60a2e1a82cfd4775106b9753b5435a1a40fc3ceda2c05719f2da83b. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/QZTB62359482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f0afdf5312d82fb51a4c685e2876472901f59629aa15cdd130f4a5add3faf74. Chain 2 (Bitcoin): anchored in block 957681 (2026-07-12T09:09:02Z), 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/QZTB62359478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x094dc5ad0aced384d74fafd1b2891bccc50395bef52b8f932a066d220ef066ed. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZTB82300744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4900fe45e6c15a242c75416ecfee8b2dd92a15ebe8ab1f888c63efe219421a83. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/QZTB72399383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb24926fb0c9bf379ceeb1732c52bdf3b86e13b4820103530c5bc80e2dac929bf. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/QZTB82322789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2317c0493f948626aaac5e2f73d9b836b0c93245194da4b55e9d4b3ad5c4907b. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZTBC2377270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x259f322b5caa42f79cc30b14d175e5ea840bc88a174cfef06793f853400698b9. Chain 2 (Bitcoin): anchored in block 958706 (2026-07-19T08:50:34Z), 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/QZWFF2386359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x596081175f341cd1d82678fb42764a2dcd0f03a6777e02f7c061caa63914004b. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/QZWFF2385707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae6b0259dfb53f3625a674901ed0a564823956c353c36eaf30b5af1d810671d7. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZWFF2386357.
LIQUID BREAKOUT: Every New Radio Song (v1.14)
5 More Minutes (Original Game Soundtrack), Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef3be8d217e2688d235ef46828b980826b3bd74ec9468c3c2890d647d22ede1f. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZRP52486975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3623ae4a47e00ca643723488fae0a419ad53783da2781b04d6cacbceee59aaf3. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/QZRP52486977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa11102a30074a46cfe30f8feb41bacff30f56ddad217405a78233514d2b7ad04. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-02T22:05:07Z), 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/QZWFW2441396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bd5bd277e1ab64d99cbc302305cfb8bdf51ded746241d3a1dd2a067ea562095. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/QZFZ22560636.