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 0x99a18f4804d670393c317c408de07d771b54e386534167f930472e20824f4e84. 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/371de450-5c5c-4ffd-a736-bfa6cefd18ba.json and https://artists.proofprofile.net/proofs/artist/371de450-5c5c-4ffd-a736-bfa6cefd18ba.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 0xe0111684666601697251f243b15f268da1ebb6e3a95c6c726121c0c1348cc478. 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/QZHZ52083892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dbee413752bbd237127d5a7123a764c68217213157c409ea55b1fd52d6aff78. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QZHZ52083893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9229fc94bf92ba97f663cee386765451ef8be0bd4c514867d34015178f3349f. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZHZ52083895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6ecd1b0a434b711709e9bee84cba454f5ff122b4ea32134bb956822d6cf4f9e. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QZHZ52083896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28bf49ff9ddf5dbacebec9ce6c47905fc82c4f3ad6d67da562b6ec4932af3bc8. 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/QZHZ52083900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ac09a885b623da3321d464355e05e21e28927b103a93818dc97997f58b3965c. 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/QZHZ31972974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce48e3be3be414c6d2b221eb4d9b2a2cd3bacf0a050661ce3c0460647da6c97f. 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/QZHZ51991125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe28b68f310cc297c0ae4e05325db9bc8173bc002e6005ddf1bd490dde38c2963. 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/QZW9K2252338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbd134d288a7c03c6a0a55ab680800f515186c502247ece1724fa3cd7b600c79. 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/QZHZ32056177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f6b053fcbbeab7027c1479e9007b64a2d13eb97593a46078916ddcec650e4e7. 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/QZGLS2092204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb9417696a085b04470496b4dea3a9924fdec80534665405beda2b782b4d3e39. 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/QZGLS2041386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb48608b80f5307b225cf95d98056a4a32a6b4e683c9f3f3b12dc55d55c181be9. 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/QZGLS2066194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52851fc97882c77f3b43ce114790b76781b9278aa3dd9727a4fbdd4ab08cb582. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZGLM2045070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f3a6b120f53c54422943fe55de7b1345b4e14b6cbc2a264802f27a0fa5414bd. 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/QZ5AB2093196.
Armadilheiro experiente - Prod. scxttpurple
Armadilheiro experiente (Prod. scxttpurple)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x068d2c23923c733ed4a58536831b01c8a3c4d38ef1c264784113f42aef03ecb0. 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/QZWFN2460688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41b5bb89ae9f26c951ae526dfbda7db8be590e416e910261bde86e0f4a8322d9. 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/QZWFL2451148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa01238371cad3418719e259a47fb319273c23bc4d36c53017e94e3a3b64d4676. 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/QZWFL2448215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe08874841e1f2f6e5e776905f9ba0c6b271e8c953311956e7d411912bf1aff5. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/QZHN62580579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x307403e3e1b3779988df5bc8275169ad13e79c9044c91358621b0be697963965. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), 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/QZZ792474909.
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 0x95424c957cd37624ce8b6f01321bc070e81d6fc5fda97648946eb825b3333817. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/QZZ792445803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb1132c2407d6bbf1d5b709780c843c91d436cc7a7073196e69fd502a270d048. Chain 2 (Bitcoin): anchored in block 960300 (2026-07-30T19:42:40Z), 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/QZHNC2579987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1b7ec85fe8f33b219cab3c7a393913392e611da46eeae77e7c9745b439bcc94. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/QZZ792494676.