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 0x5ab2ed939c000d4ff3564cec80f49ee016afb3921207de14db8e029be87c3e8f. 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/e1895a50-8496-48db-bfa4-8843191b3c52.json and https://artists.proofprofile.net/proofs/artist/e1895a50-8496-48db-bfa4-8843191b3c52.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 0xe1d7d8f5a4f94d6f3a7e8d6076093cc375733777d117e4aa70d82df7ae212f2c. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:22:28Z), 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/USHM82084641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63a24a73322d962b2b3ecbeb4fe403cde0963e6bd69fc124e977f029f3094cd4. 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/USHM82084642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13243592c4cb9610e55b868393cfdb215e4066be0e336c9697f6427c21b5f339. 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/USHM82084644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x766dae0e1e8d9c551bbffc66cc645e4b8cee06fe458bd85aa512c9d5dc9c4189. Chain 2 (Bitcoin): anchored in block 956485 (2026-07-03T10:53:04Z), 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/USHM82084645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e11667579a065d02b389acb811377abf4efd2b1905b23833ac3a9ea49cfa659. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USHM82084647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8e994dc14362f1fb9f1481f076a7b944c4d22b631a9479cf2d77a1884a57e43. 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/USHM82084648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x085db114d86def6d95bd18921c955b4b04422a5147f53a8a35b397f712584667. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T11:30:45Z), 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/USHM82084649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6588e72603fe26e7e262145d536997c117ac1fed797d2dd851db16b041c5ac0a. 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/USHM82084650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed4aa8a355557ff6335c08227ddf9cfa7201136e56a3068d374c11a17313674e. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/USHM82084739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92f512a527875b7a50d1200eca2109443e5b4d310fb84ff0b875d4218cc5f62b. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T19:48:03Z), 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/USHM82084742.
John 16:33 (These Things I Have Spoken Unto You)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8291d1371de6e7aab546c7aabcf51f10012abda8303f6bf0bd3b00076f8fb47c. 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/USHM82084743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaba01e559dc1ac898c200c9d238f3457a316743c73cae89466646b51a41f3c4. 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/USHM82084745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x988f2c630dd62f74f222f03ebe2aeb26913d2f66a3728704adc0bbc27bd46bab. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T08:08:39Z), 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/USHM82084761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x976037487898c753ad8770729d91797440353e128196088c8bd2600ca4e786b7. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T12:57:05Z), 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/USHM82084762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2ebf19b7e6669ed7f9ed5fb5522ce10534e99570595e422cafaa17f5f6ed81f. 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/USHM82084765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57d2df3671bf8db9beb56861c8d773bfff62272df1c5f334c6b682c3890e1e06. Chain 2 (Bitcoin): anchored in block 959089 (2026-07-22T03:43:37Z), 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/USHM82084766.
Jesus, What a Wonder You Are (Jesus, How Lovely You Are)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99798de0e7d45ad392460041dd126fc1e1b65e24542798799d8dfc10bae22863. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T07:30:49Z), 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/USHM82084768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x878440da543b34bacf6f3086133bd06590ab55b80c33450c948e50b2109d77d1. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:07:10Z), 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/USHM82084769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe27c4ae473dac856e052c0afb362cdd690e73574ad3321e846599fad89524ed8. Chain 2 (Bitcoin): anchored in block 959089 (2026-07-22T04:46:49Z), 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/USHM82084770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37efb1ba2ef12616989dd8e6c57977e0d9a9491b1868dd57f70b124eb700c662. 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/USCGJ2095150.
O Magnify the Lord (I Will Call Upon the Lord)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeea8857aed3ee8a37f17c574b66a91c8f768079cecfc7ea1c4a89170020042b6. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T13:30:05Z), 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/USCGJ2095160.