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 0x9bf722805a4bb46dd2fe320670f530410bc3ef23327f352c2baeb09f9b0074e8. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d28cdb37-9223-4634-80c1-6b3f7d65c15c.json and https://artists.proofprofile.net/proofs/artist/d28cdb37-9223-4634-80c1-6b3f7d65c15c.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 0x7b6ada4711e20995014fd50c3f63aded5c5bd5ffd918af4e5f33ee70accb179c. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZK6N2364793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3662825f6e3e9598234abeea7c973219adfb3e404c299be834073547d46c1c6. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZHN52379996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7e12af83591faf3f8bf499b726377d739062ceaa8ab100298e401ecfd92ce8c. 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/QZK6F2347430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64bf437677ac04feaf4ea2df2b0133cca5fd93d96f251f3e5e4d328e0853ef58. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:15:48Z), 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/QZMEQ2357321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17c152e5f0fac4423bdcab37ce93c3ae31b1dfbb266c3af188c4772cd3770f9b. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QZK6F2348243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7e1945938f19191d86a2c44f215927b029a3cb85765e2070947e14891736826. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/QZMEP2370395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86cb11367d90f288c4c0abda5405cd0e81d5cd245f418445630ace232e29a185. 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/QZNWR2395980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e22753e2d1180a382fa47468321c55aa590977f45608c6bec8328a2b46243df. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/QZNWS2308394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffd3fd065d0250c2e66ff1e765871d50ab385e7a895a181fb39e36b66ed5b2ac. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:26:51Z), 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/QZNWR2397343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0a1e007f1d7e29b2c6ee1457757916b95927c94d27997d496b1e89596bf2c6c. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T13:22:35Z), 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/QZNWT2376886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6686f858ec9e8f91cda671e82512b05eebc40864fddd41eb5eb90fcec234a4f2. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T06:27:54Z), 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/QZTAY2357651.
HIP HOP CELEBRATION BEAT AND HIP HOP SCRATCHES
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5246734771227569ccd11007338376e1f9b79fc52ea0cd43f5e713a2159d06a2. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/QZTB72342654.
HIP HOP CELEBRATION ACAPELLA AND HIP HOP SCRATCHES
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e8bedeaa3e0ad2ecee1cf902de4785849586ba36a7e7e8d81edf1eacc2c9f80. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/QZTB72341598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61a69842d5b7819e1982bf70d30b45917cb8be7ec83c16df897319a873305c39. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/QZTB72324143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa0b085744d38d36e2b4b3f22e28eb7eb385a18d5106f80d4856ae5f0b88d808. 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/QZTB52311395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0e071e710d70732282f6fd9fb9c1c37855232a76e4cf20e8b6a72f73456125d. 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/QZNMZ2242256.
STREET CRYME UNIT IS DANGEROUS (Radio Edit)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe46039aafb9adfb5268edcedd6374e2ad95078c6f3cde8bdb1dfeb5ae5708857. 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/QZWFF2382628.
ALL I WANT FOR CHRISTMAS IS A BIG BUTT GIRL
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97dd3334e522b08823c359ceaa5446ac14faff41d5f5bac7f9622db3c249e008. Chain 2 (Bitcoin): anchored in block 958903 (2026-07-20T18:05:42Z), 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/QZWFH2313984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2406634777515600a58714af1588d06af27a66b4b4314a0e9307fb15a61fc4c0. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZ85M2003539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x313191520d4194a8cd4b50dacd1861b04ef22b10cf4de3c8b1df485aa5c8257f. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QZNWU2482374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd97f1dd3568d47a3553c28e5bfde9eebc3f7e8b21a98305a723a41c8aaac8b12. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QZTAU2529982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb24afb669a2d017c4c4f164880436be91fd50f86d8a5f51210fcea9955400e7. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QZTBA2502449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a347d5f0f946e51fa48316257fd6c91fbf4d89e720764d1e95bd5a91e3ee9e9. 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/QZTAT2594617.