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 0xa4170f9d5fa57860fe9e78ef4879e41e21860973c12191c01a5bdbcd6543025d. 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/3cf24971-8255-44ee-a2c4-0632a680ac03.json and https://artists.proofprofile.net/proofs/artist/3cf24971-8255-44ee-a2c4-0632a680ac03.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Fuck How You Feelin (Feat. X.O., Lil Los, B-Dawg, Shadow & Woodie)
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 0x361f2931f5db57155e5035da205f20fd0cc2ffcae6e7e45ce294c5ddbe27e6bc. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:20:19Z), 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/US7760500063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x538c70d1b287149e07c4a234d98fcffcba679490a1f5e7901edf2544fbe0575e. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/US7760500064.
Slugz 4 A Sucka, Ene Dick 4 A Bitch (Feat. Woodie)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1a1814e618fd69f282cc1f05638f1bc6a9fe60fba4e9d61a9b721f8e1d1fb51. 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/US7760500065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf8bf2dab34d8321c203d7bc6ee52deadeb05d7d5ef4c0f3bfa53e8676a7ba6e. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/US7760500066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7761cc21b96bbb3da7623ca28f6de1071ba5c598a016e3e4b11ce32f19d9369a. Chain 2 (Bitcoin): anchored in block 956809 (2026-07-20T11:51:59Z), 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/US7760500072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06634adb9e2f9db57039fa68c6fb4937356a3ca242b7bcd6d51d9cea79c7c4ff. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USUYG1004421.
What You Know About Me (feat. Lil los & Lou e Lou)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a13c46ca9ff8be886f5dc2293c98e7158461ab1a1848fa8ff241527813be0cd. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USBAE0702797.
Woodie & East Co. Co. Records Presents Northern Expozure 4
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec6064fafafcb3005c4a5fa7c6363ee249dd3ecef5db77bcbc70029e17c4ffa4. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/US7760500031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x941640f1185c1c4e4c44a6b2c0e1c984f91ecca65ad7c9da640f2399beb7c476. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/US7760500036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1db349ce656f6bae2ca5b3a55605a1fd9f3cdd7f013780d10ed12b3d6f041495. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/US7760500038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5a12b70b2fdef97d0ce71873daa720b1cd7d7830fdc624bc88356d4b835eba4. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/US7760500042.
Warning Shots (feat. Davina, Lou-E-Lou & Shadow)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4245a43e6fb47422b21ddf3fd72ed577e91de83d9fab6281ff3f9ca5aa9651cd. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USUYG1457660.
Steady Mobbin (feat. Tito B & Lou e Lou)
Menace 2 Society Presents: Northern California Gangsters & Thugs Vol. 4
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36110c7805e3b807525241f3a4563709b3dfba5779097ee8ee26b874fd2ee4b8. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USUYG1044654.
Menace 2 Society Presents: Gangsters & Thugs, Vol. 5
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6ed7fe1666f8ebebbac0743e06190e5393dd8bb37df2d0f37a52f735cec70a1. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/USUYG1156315.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch