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 0x432da81b46baa481f1b72d7ee49e45306300296e10b29a5ab3aba9113b4e7a61. 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/a174e18e-fe38-433f-b0f4-dea5a5a7aa2c.json and https://artists.proofprofile.net/proofs/artist/a174e18e-fe38-433f-b0f4-dea5a5a7aa2c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
"Boss Up" (Rap Freestyle Type Beat | Underground Boom Bap Type Beat | Anabolic Beatz)
"Evil Intent" (Rap Freestyle Type Beat | Hard Underground Boom Bap Type Beat | Anabolic Beatz)
"Break Yo Self" (Rap Freestyle Type Beat | Hard Underground Boom Bap Type Beat | Anabolic Beatz)
"Inner Demon" (Rap Freestyle Type Beat | Hard Underground Boom Bap Type Beat | Anabolic Beatz)
"Vengeance" (Rap Freestyle Type Beat | Hard Underground Boom Bap Type Beat | Anabolic Beatz)
"The Realest" (Underground Boom Bap Type Beat)
"Bury The Hatchet" (Hard Underground Boom Bap Beat)
"Peacemaker" (Underground Boom Bap Beat)
"Ghetto Ghost" (Hard Underground Boom Bap Beat)
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 0xdd2b85939ea026c959e205243da68f4cacbce03ac72664ffef20ef25f123c2f6. 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/QZFZ72279826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2b2fe7830b9ecd5fd2fed63a6a2bf95da45b90513621c88afcadb024ca92e57. 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/QZDA62280304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35c62bca9bb2b6e264bfd104ab751676afd4c973d2126e3d0d9bde0295acfbfd. 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/QZES52286336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2b1a4fc90e1889fa03a17c543a6d0df501498ea342be198a60193593a684221. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T21:01:57Z), 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/QZHN82136080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c0fc2856bf530010ef657efeefc6584bc4b5698afb4999dcca74b120745c054. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZHN32298031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74b3e57bc8d2faa7c561c0f6bdc947bdabdcc93e5324d20226f7f8e8c1665aeb. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T23:28:29Z), 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/QZK6J2213554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82ac3cba182a85804df5f7b0ed9bfaf726e36af8c792f6d8f7b89c30dd8b3523. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T15:56:07Z), 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/QZDA52220269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaa8ddfeeb36ced3f6e52ddffeb90fcb174ef25298b729b67d6bc35ae2f8e234. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/QZDA52221718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x687029c00268567264f5c4fe667daeda30337dd32357af03c5903d9ed0586f68. 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/NZPB12202998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd941ebae4e3e566846b79bf81542667e1d719f9766c560d2f62cce5d429d7e9. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/NZPB12301392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32fb4c84b29d0ac0bd9bc57a47e2cfdbd0548cc430e4f6df919c759dc92f249b. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/NZPB12403079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb4adff2231496a63b219fd9fc45b801e60f7b5183b662641c8ae18686f9c64c. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/NZPB12402957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x553afa30c954146e4e305f8a09d0ba35ec412b09cf6c9362d94867bcb5f92a53. 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/NZPB12500741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb348035add9b3a509b323a689663a55e93b1aa63bd30b8ee3e5aca530b8207ab. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/QZYD92500764.
STACKS & SUITS (90's Boom Bap Instrumental)
STACKS & SUITS - 90's Boom Bap Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda79813bce2875341f16ad36a27aea7fd10184d7b08e2480a38f3ab0cd78fcfb. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/QZYD92500902.
DOLLAR FLOW (90's Boom Bap Instrumental)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1157cc5d519596449410a921ad47dece68bdc334764a6ac5f67a87ecbb173a9. Chain 2 (Bitcoin): anchored in block 958756 (2026-07-19T19:02:40Z), 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/QZYD92500945.
STREET VENDETTA (90's Boom Bap Type Beat)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4d7b19135a7c5ce9c9624b3fffd078389c1034e1f701da5a7bbfe025c0d69ba. 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/QZYD92500958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95b02c4b0373ac1c7e94a412f8fc36d8d70c505ef2443d546032c3523779cc3b. 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/QZYD92501680.