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 0x485ac50dfd07e014659183f3377910c4b61a66c9f61cc554a3563fc26f6d8f94. 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/bc28398e-b23b-4dbd-9772-9fcdadb724c0.json and https://artists.proofprofile.net/proofs/artist/bc28398e-b23b-4dbd-9772-9fcdadb724c0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Dissolving of Happiness (Tribute of Souls)
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 0xfad21b5b340bd72dccb2d7cbbd0e929ee3c9afcca78ab70eda8a335036e8c8a4. 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/QZTB52487822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc97a4c4194a349e30298eb8279ca3d1071c2e3eac6569ec5e1c31adfeea5aa3d. 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/QZTB52487823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ae7cbdd453251ba414fb1f494a8cafad28260757ad0e7c42dfdb634ccd77389. 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/QZTB52487824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe34c88dacb36f8ef1e891bb7067a1374de6afed55f422d80f5b39400e7bf4e7f. 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/QZTB52487826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x514a59f412d13f3ee1ae532bc8b456877f9b8dfafe66d353cd9f2a0e2eb19d93. 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/QZTB52487827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90e4a4e0d926f8dc2c0ffe95cb8c34426c3fc10e0b6ebaf35ab148b704b7bd41. 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/QZTB42486043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae38cf3d35c24ca63a4c112df9ec9b7908c9238c20e791ff50042bc76cd0068a. 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/QZTB52487829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c5740c76308a210a217f74c131fda51a5ceafefeb2e6ae6f6223748071bbf40. 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/QZTB52487830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf225c4caf0da47c8213d6e20888afb335fbd338f9b7202279dee646fd1d7d022. 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/QZTB52487831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1c01b8d557ca553575cac013f84055fd26f3f5bddf9309a48579464dcfa486f. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QZTB52487832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb9d40c7a8c46354f4b35d0e9ee498c47246388fdbc7bb3c31f91b97a69c1532. 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/QZTB52487834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09f58a3ebc69b565abcbd7cf90a5786cdb89374620cc8d0b93629448fff2d3c3. 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/QZTB52487837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b6e4cde441dffc0b6966426068b38d22f2662157faed68b39c3ba8c026b828b. 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/QZTB52487838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfab0819a32f89ddc5d1f276176ce58ee3e34ff6850a8d0751a6af22f18e18dfc. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T19:05:18Z), 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/QZTB52487825.
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 0xbc5bd28b8a678bace2505161313905840a1949f9f8f15546a3e0e1def3786075. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:01:22Z), 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/QZTB52487833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed6bc428869134c45b7eba03ab30ea672134bf465f76146db907c164f5f2d476. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), 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/QZTB52487835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x652855c4a2ab999b1ffb09b0c174dea2d696ccd6bedd5f4dbf74a3e40b520a98. 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/QZTB52487828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8253b89ab5cfd7f5a01085dc7548b3eb19466794c2b9f27cd070a6ca8f087d9. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/QZTB52487836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dee7854d9dcde97a500e3bfbecc6a39e49283a01b2640cc3ddfbff9ea4e7c50. 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/QZTB52487839.