1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x9af5286b983e97d5b88b9a4dbff39f54b7836e675913224b53c7b7b2c115a5b5. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/11015779-a11e-4647-9bef-f9927b98d567.json and https://artists.proofprofile.net/proofs/artist/11015779-a11e-4647-9bef-f9927b98d567.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 → block OTSBitcoinBlock must exist at that height 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 0xde786b351f1ce0ad400de517af336c70d66644d275d37339a0813d8a3fdfb81e. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/GBMA21915197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f81ca1d1641d2ec8509234d8a631c1edfe9922c208abf2d9503ebd1c4f18a73. 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/GBMA21915200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fd09e623bcfb115084b9ad4c5dd993fec0a481f50143621873e31d0e29f1a0d. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/GBMA22054937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ec2cea1e6549f305064f0f0e4d212478a968f9a709cde698a8135a237c71835. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/UKXN21984052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe31f926adb6c2a4083265d7f2b75ccf47f12e1583c8489f6b8e7e209ff4b6403. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/UKXN22141675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bf5ebb9fcebc4042643f302e559caefa63629b60ea056d66109d2cbe30fea77. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/UKXN22141660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7d2fe664db9d7178384e27d3ab6a9ecf198da8093bad4b2fd99c4f5a2b7ceb3. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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/UKXN22141664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa343c9840914f1404b94da6576bb6974cdadeaf00d4c5fa746bade9f72ae1c22. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/BCIP82100010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fcbc1ae371c7b82b80d4616c48c99021b2dc754799199850f92347d9f1d9ac1. 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/BCIP82100012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa48270798e0911d4128a35e86eabacc70d3f02be31896c881e1c598e1bca1329. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/BCIP82100013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99a7d4f07eaa7783e6ce122a7f88688c65d8ab703b7a3dfebeafc9c911f3ff3c. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/QZGLS2440779.
Lábio de Licor X Marilene (Versão Acústica)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62516736b0ee81f8b8391dc927747d4c6308a7ee3fd3c6f127964d04945a537d. 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/QZGLM2594106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5876f6bea74a26ff21caec8a9826d36e3df5ea7cd3eb9e76b9cc72833bc4961a. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZGLS2546015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb69c61747d939f9629260a84a1d816641e054adaac1766d110f5157fe12e498. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/BRKGM2500011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20dc360db21616f31b8d848281f000f941bbd3d822fb577084acd526b770fd9e. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/BXNOS2100005.