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 0x09d7bc5fc7c2807dc5f6cf06320cbfd49e264a1e0362ee552f08c1b50f95005d. 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/96992a6b-3ae3-47ff-830a-5378797bb794.json and https://artists.proofprofile.net/proofs/artist/96992a6b-3ae3-47ff-830a-5378797bb794.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 0x2ec2f10c100717815c71e574850265a1680d7da09168351b78b31a98a05a7285. 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/QMFD41900003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3342d00fda4f870fb204a7385ccb9b97de8357d68892f07552be3e54957b1874. 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/QMFD41900007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e1a3b885d1e621cc6d3ed895665728908227177b2e4cabbbd455cd1f3f8e98c. 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/QMFD41900008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x533c003308e6d53cdf93f4921db92ef4f54109affb5330f0f270aa3be3bbffc1. 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/QMFD41900009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34ee411a7654b4e29a36468fd6f694c6c94c42aac8394a3d5cb60cdf9e60d5e1. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/QMFD41900010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe013be07202a84d9b529ed998b31539ef47a48822d219adb0aa1aeb70645cd9c. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QMFD42000002.
I Can’t Help It (If I’m Still In Love With You)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4336a532738252d9a7a4a0c1c5fa683d14da969ba31b20c26ae57961f268aff2. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/QMFD42000015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdfe4c1d8e408d8876a79365ad14049f64611d0ab8db8cb7b2d1d3c54c15fbf6. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T18:40:38Z), 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/QMFD42000016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab7595c66f42b11bd2db1399053bde345322d9c158a4f7958832a1d8d839f3cd. 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/QM3Y92000011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62a6b69eb1f83d60e9bb9e6e0a8ac37611ba27e1b30eb198ee288837c8caaaf1. 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/QMFD42000073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5939584213b40cb8ca95f93c93b7860d34cc5a0cfe10065dfd5df8a3bdeb298a. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QMFD42000075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88a5a262b7d4342c5df5c2018203fef1eb7c8c7128e0aa22e942d670ca84ad80. 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/QMFD42000076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee919af5360912654bfa99e575d24f3ecd671a488927057ef75449bf6b43d3f4. 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/QMFD42000077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x379763682bc544aa161d56f15776a39f6489b7c2d6aa3a9173ca15bf116c84ba. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QMFD42000081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x415b0638d4a4204383f7f8255c6574499077f95a18cea45e1d5e6cb0b6729293. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/QMFD42100037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x957b12a7b82fa4c3b513f51bd66855773f59c2921395f355b0b550f4e6df5b04. 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/QMFD42100040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f4093ddc544ecb76780be0c1b324b53b8767c4fa9b861297ba8847bcba277a3. 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/US27Q2254705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfb4d7500027c95c0aa06681fd2796d6a8a056b7eaf9c76b9f919b988dcca6d3. Chain 2 (Bitcoin): anchored in block 957867 (2026-07-13T14:55:20Z), 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/US27Q2254710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x092ac9d45366d145340435959fd6f236e3b5dd044758905831da9c5c8ac8f775. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZNWY2324296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8dd81712ac557133a3e4cfa83b3176eb3640151bd3b29a40fd1955d1ed043a0. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/QZ8SH2405102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8dd81712ac557133a3e4cfa83b3176eb3640151bd3b29a40fd1955d1ed043a0. 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/QZ8SH2405102.