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 0x199d61c7d1d5e075b382b47000a13404c4c4268c8d6082f268e6dbcf7e6b32f8. 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/b0e509ee-b380-4f7e-a285-00120d898b41.json and https://artists.proofprofile.net/proofs/artist/b0e509ee-b380-4f7e-a285-00120d898b41.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
"Its All About Reach" Halo: Reach Uber Rap
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 0xef98ea76285bf55a72e77872f11d51101174158caa866d2bf66251896953caf6. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T11:49:16Z), 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/TCAAT1078238.
Borderlands Rock Rap "In The Borderlands"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcddd66a810e3e324023084ec28a0062817fd4e3511dddb0f26af1210925c67a5. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:56:50Z), 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/TCAAT1078259.
"187" Assassin's Creed Brotherhood Rap - Single
Aliens Vs Predator "AvP Rap" Metal Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad90866d74a7008ccf9096cee92237facc7ebb42a51f7b81b62fceaa066ab2db. 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/TCABC1183264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x141b9944c191822e1400e4b0cd07a005f7e1f860b7593e29f474d4319ebf6a3b. 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/TCABC1183238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa006d2534eeaed8d4e1d3912847f678cbb9767418e4c9f5d88da1202e505b9d4. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/TCABC1185653.
"Where's the Beef" Battlefield 3 Rap - Single
"Here Come the Reapers" Mass Effect 3 Rap - Single
"Welcome to the Row" Saints Row 3 Rap - Single
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd896d3070a2c3c23a9ebe2b274dd480db7577e91612cb3533a6a3ba33b7c604a. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/TCABI1273834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x796c330ae2a26187d9b8fcc184f2bef806629d350aeb7b9625739a0505f7c11b. 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/TCABI1273718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x299a90e3415985b55003146501fbee9a1236bf1ee5abe71900dc6eba8495e153. 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/TCABI1273831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x084b9c4468c2ca45c033f388a06aead325931d476d6eed5899ddad6b6019610e. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T19:02:00Z), 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/TCABI1273725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2accb03d0ceb766ebdcb076988c882828ea217c96736e361b047af5f052c01d. Chain 2 (Bitcoin): anchored in block 958368 (2026-07-17T05:03:25Z), 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/TCABJ1273579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf49b987862397fbe02b700a4de47c7ecaa985816aaf810376200a5b414562e2e. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T01:45:11Z), 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/TCABU1445199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x700212cae8fadf9317baa35df959d764d89b931009a0758a769ec0d15b0a26c0. Chain 2 (Bitcoin): anchored in block 959065 (2026-07-22T00:49:40Z), 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/TCABU1445203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x442ce110845d8691a315c721b9d22bf8003dadcfd36abfed49a1f0050fbde1c2. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T21:41:37Z), 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/TCABU1445204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7912460de08f0602de13846e3c8a9a5c8abf4a565dde667d42ec85c42d2ff7da. Chain 2 (Bitcoin): anchored in block 958720 (2026-07-19T10:53:46Z), 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/TCABU1445207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b0ac97c5e1537fd2365502a71f7c8b13421b28df171c1c10ddb72936e8cf4b4. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/TCABU1445230.
When Titans Fall (Titanfall Rap) [feat. Jt Machinima & Borderline Disaster]
Drop the Base (Borderlands Pre Sequel Rap)
I'm the Chief - Halo MCC (feat. Rockit Productions)
Rocking the Creed (Assassin's Creed Unity Rock)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf621abedf9072d07e4773400cec9b8157602d541aefa5118b681b8d9851eecc0. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/TCACG1540193.
Jedi Bong Hits (Star Wars Rap) [feat. Jt Machinima]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76f0d0c531c5268667d1ad9ad5edef52cc1a226a04e977594ce7812f85ba3937. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/TCACG1540170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf94b0363029ba3d937580df58f5cda912ccceaa27da53fcc14f5e27f284ff14e. 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/TCACG1540173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b96eed450d05712cad4e56300605eda99455b3580a4221ce7713fcc30d9a6da. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/TCACG1540192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99189f1764396cc36f81087b565f798e73de60b2124e3434e6cbac656a1735d6. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/TCACG1540198.
Suck It Trebek (feat. Mega Ran & MC Lars)
Brotherhood (Assassin's Creed Brotherhood)
Revelation (Assassin's Creed Revelations)
Assassin's Life for Me (Assassin's Creed Black Flag)
Rocking the Creed (Assassin's Creed Unity)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa18e8798a88cf34e4c77129a7da60d1e99a602fe53f96c89460bf6276aba4d6. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/TCADA1780172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2acc45a2f65fda5bb006fbc7f47fd21c9072061feff0293335646b884841b781. 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/TCADA1780177.
Guardians Will Rise (Destiny Rise of Iron)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf071b60a209c637cad3151dfcf388f6ad69bac76384a14135d153dc574499032. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/TCADA1780187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80ea8b1631012b17e7ea7fca6c6c6bb7a655af5d42ff744f46e09f00c51905f8. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/TCADA1780223.
Chief vs Locke (Halo 5) [feat. Jt Machinima]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9615890ae0d04264789a71b5b298b46265660afef4960f5e72b1abdced8f140. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/TCADA1780241.
Welcome to Your Nightmares (Five Nights at Freddy's)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcba5baaec29e8512fbb8f55bce17e0f8c48e30eda0cadbc20f2b19a790d0dcb0. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T16:28:29Z), 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/TCADA1780254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d3dd2f98185b4114fed141120440d0ac607bda1883c64442072f1c6a6e43a4f. 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/TCADA1780299.
Doom Guy vs Master Chief (feat. Jt.Machinima)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb866a385a74c65cc53cd92d11c2bbb770d47a5a0e837b777221500b012156ea6. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:05:10Z), 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/TCADA1780307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4729c535d2f965920c31a90640f5239b85d70bb5a873fa22aac7d71a41a638df. 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/TCADH1731941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cd6a929e3170e905f022bc1d848f9fea43610030d58fb43d223eeadb4f2e599. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/TCAGD2274953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5a6ace65f93556378a38212c3bac81090a76e9a3749e59914ba2aaab37a3b19. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/TCAJM2585819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x023b50502f117e48f504a54d0465c6dbe45e79f1e021a273918f229f2cd40750. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QM2PV1774965.