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 0xa1a3a25f1b0e23e33e5dbbc0dc76b215fffa8b081877d32a9a9f67e9fa5742b2. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a871917a-52b6-45a0-86cb-f67625a0c9a4.json and https://artists.proofprofile.net/proofs/artist/a871917a-52b6-45a0-86cb-f67625a0c9a4.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 0x5f5d4b4c4fc583c28be75b0868bd3ae8062aebc95b0dc8fee663d112142391f0. 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/QZHNC2260845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff1dff81d55bd56d9c288d81f347aeb2ae9e6e4bfb87140af476c04e883373e5. Chain 2 (Bitcoin): anchored in block 958816 (2026-07-20T03:51:05Z), 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/QZHNC2260846.
When You Wish Upon a Star (Disney Theme Lofi)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x695779deeda0c41a37ef1a1c51b8cc0548a476b0925a4f74386d008237f4ec8d. 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/QZK6N2228408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e1afaeef2cd7ff4ff7db1bb9e896e22bb984feb05e2d43e25ac1962a711aabf. 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/QZK6N2228409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87c2ab87a796af33d15e29f598ad3d53f69aa920b99f29113803452a7c477bfa. Chain 2 (Bitcoin): anchored in block 958736 (2026-07-19T16:01:42Z), 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/QZK6N2228410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6770da723674d3c446f2c84a7e7af04c0fe460c6c6d9e7148b30ae1d8c8b1d94. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/QZK6N2228411.
When You Believe (The Prince of Egypt Lofi)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x958fc8810aab933b93fe9284202e82bda48d441feed6bb3bb45d114aab8265c3. 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/QZK6N2228412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d43bbf2dea335739d0c4f206eb93c0541db5444637355e0b5197e3c5e355434. 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/QZK6N2228416.
Part of Your World (The Little Mermaid Lofi)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62bb4576e405c7f537569ea1104ff7714ecfeebebafbf791eedc6ea61c83937a. 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/QZK6N2228417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cc7fb77fb2eedbedf2050b469f6a1b24ffec950e8e5cd94b93aa2034cb4b351. 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/QZK6N2208115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x846b75edeea47d807b6b394b74c67ef0852bf20f584cc9358b892e2cecd33af8. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZK6N2208118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cbae65d5b85bbfbe310b9bf5db064cd618f748a94ca1fe72fb224074e0c4edb. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZK6N2208121.
Horror Lofi Collection II (Halloween Edition)
Come, Little Children (Hocus Pocus Lofi)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb64b8df09faa4933e0d8308f58763bbab3adc766792294f59ab29b05aa0deb60. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZK6J2276226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadb11f84c87593a45b0142fef7f7481070b9fdaa0186ababcde473fb90e7e0d6. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/QZK6J2276231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ac65a9daa27614a92bb473ffbb21573cd0e8a8659f015d8c61eb895494c366e. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/QZK6J2276232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ed891412d4c60e3e5d302b4ae5d21f40501c0886a52e85b8006ec27368ee53c. 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/QZK6J2276298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa10c33c94c7a2bcb3d518922c95554a7907503044dbdfbd9cbcbe11ee8e0f9d7. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:12:46Z), 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/QZK6J2276299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4269c9978e7f5bf47f71b2f1ea996161c51f84f79e3bb64c618976e90cf8ffc3. 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/QZK6J2276301.