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 0x159cede93f3823ab031f0af207da21309e076948ffe86ca471d4c3daec2e26ed. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cbe27df6-9f59-41c6-b1c5-e7e58de61d06.json and https://artists.proofprofile.net/proofs/artist/cbe27df6-9f59-41c6-b1c5-e7e58de61d06.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 0xd186a8d313c9138fd062ac611e6645f76da0bee89100c6bd37ad886f99e83e7c. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T12:03:04Z), 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/QZHN52406648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffff0972c14680c3cdc4d281a6be5f9bc6eed6d11bc101e6aa6390d9343f2f74. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/QZTB52407082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa1c1b4fdd2fbd0a74ca5f8bad67ef6a2107c0bf85832b81be22f60a8260f2a8. 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/QZWFE2412696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ce5e24f001a9a986cd9e775357a8cb56a8f034b51658ede354ab94c65e2fe2a. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZWFK2443402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4645636002587ce41745ad20b043cb3848ba185eb0b604d7df3223a0bc55671b. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T21:20:45Z), 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/QZFYX2554237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ee30ba8005f616a0ca389f99c103bd1f4fbe4b418596200ec1ff9a02f398033. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/QZFZ42562461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x123fd337dc51ba57ea196401ff1cb2964b23155c951a0f0ed92e04cb5edf3516. 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/QZFZ42562463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9c64baad9dd88d394e99412a04972043924da1f894bdc1eed2316e5fd1632a1. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/QZDA62597948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8abacde3598ad0e88081904477a9ad7031203bcdd97a112091cd41bd3bab45c8. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/QZHN42538389.
Can Not Control My Emotions - Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x458dca232647320fdd20b7beef7e0cfffae551741c1ee9d0902d8757a13b602c. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZHN42538390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7b1c2b4c8d1b3800adc8627ef69147550f01268f89beab5d739db12dc04b4d1. Chain 2 (Bitcoin): anchored in block 957775 (2026-07-13T00:04:23Z), 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/QZK6J2558620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x184bb023bc1ed211500f8980ec3ae3b487904e2e695922a089d0d057a3e32c4a. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QZK6J2558621.