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 0x6ed09589b6621fbe47019c753aeda2ddb01f229e8ce3ab81e13b0e333818e5d4. 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/9b7e6f62-b842-42a8-b19d-5a3f99256114.json and https://artists.proofprofile.net/proofs/artist/9b7e6f62-b842-42a8-b19d-5a3f99256114.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 0xc22d968e2d0bb9c6b206dd6498f22bf69158ebb83f11ed0d9d5cf352c0f41e4c. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-17T03:11:57Z), 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/QZJG52382996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed0f7d97dc725c60d9af7ec95f77d10633bd46d973aa8117ef2407778eda19f7. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZJG52382998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79ad41922508cb9805dce01bf5323929ced8c5ee410d7d15b152aceb6e8787f1. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/QZNMZ2313239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39f57f484506a21d8dd32e315aea670c6e245935408b736e2ed918d0ddad6607. 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/QZNN32302793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8864bddfd286f09b4ec1fe5b9972fd5c1736db7793d9edd40d46f70d7889e7d. 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/QZL382438521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8956bd80f0794e8b13e66d125d2a600fb57a6ca67fbc99802b737c7e47d971c9. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/QZL382438522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50da033794288c53df977e04d5675d5144ca2f46c34b486cd14292351fb44dde. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/QZL382458517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5e825377202b680e92be63112e8a96b5566540830530b88872944687c2a6a25. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:41:11Z), 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/QZL382458521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f23b2f4e1e3d4e5efa0c1d2929251296317b976f7df06346a4e4ffa470914b1. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T16:40:30Z), 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/QZL382458522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31e60ca9214ab2e95cd7a6be37bbd9fa824f86fcfcc7830c820b8a58971fbd25. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:02:07Z), 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/QZNB82410697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x739403ca21d202764faa612134c2d6209d6af63733f20c69d77d0d627ab5447d. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/QZNMW2408692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56299205e22d9df51a54c668c47194da021a32a0cae97d7d1f78e3fcf366f89e. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZNMW2408698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b10b22ec02c4deffcaf3c7d8e9cf1a2481ef73983e16cad617c78f07084762e. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZTBE2401283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7a8e5052b29f6bf386731c43d298b5d2a6506bc9693bc710be951c6b8a9d6f6. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZWFM2451589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0273f8e244cc101e053095cd4ecae5d6647489bfa77a480cc80165d0db2e5f91. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZWFM2451591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x376562cf3780f4b26abf2d59f1cdecf7331449a990d08b5e7deadc8c7ab1591d. 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/QZWFM2451592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf98118d53f2b35367abfba7522b4a4f8e19a81e90b5a2aee91c5e96b70855410. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/QZFYX2500085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf03277ccf8be1c080843bcc42dbf96da60b341a35cc1345e18740134675e5d39. 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/QM24S2400201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27b12025abfe901d7527c58cf4b1dff0ed2058240be53de50d543dbf0c4ff71e. 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/QZTAX2411630.
Don't Play That (Thizzler Cypher) - Song Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c9c6916f56c70cd822f6654bccaeb6046fbf65ffde49f32cbfd740abce07482. 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/QZTAX2411635.