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 0x961c8a99f10bfd4eec89a338d6ce20435744d4d23264c2eded67236e74e52044. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/94777ad5-a848-45d1-b02d-6dd815406bf0.json and https://artists.proofprofile.net/proofs/artist/94777ad5-a848-45d1-b02d-6dd815406bf0.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 0x32c8e8a136bff6b24e515ce8267871d560f082e4c3f9fe90a4348a355db51f76. 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/TCABQ1333146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee9277b4b811acbf9dfb2b74dfb4496593354749f77202f261f228da3a9a79fd. 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/TCABQ1333149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbda29bb5a4f4a5df5bb49f34455c500479f9da2ac8ae3b6d05eb13b4e4ea27bf. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/TCABQ1333152.
On My Own (feat. Lataisha Latrelle, Ampichino & Yukmouth)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18fb398810fc51848942f56ba4e3cb397151e75bafa9b34c0b63019106da2576. 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/TCABQ1333157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c1179d99068c85b250724aa76cd31722eee07940a98443bc44a216e225df53e. 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/TCABQ1333163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38bab9dcccec4dd1bf5a2018b05df9d6f82586e626595fdbf335624439f5af7d. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/TCABQ1333169.
Paint a Picture (feat. Yab & Showtime Domo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec875228e821c559daeb84d75ba923ca0341c3b608024e961e4a7714910e8e56. 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/TCABQ1333189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ac7340e02f0801c739c3eb23dd76907a5cdcfdff849bcbe123f223f1bbd841d. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/TCABQ1333202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x900a29798ec82ee3c2f918a818840dba3768a910c1cccbe86ffadccc89296070. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USUYG1009493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96fdede2f09d4d3975136f9dab41cd2256e9decde1772cdc2aeca4ca7416cb0d. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USUYG1009496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc76b7bba05b4be9d3cbc62e873958e57335e91d3ebdebcb072309c64b6889b2f. 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/USUYG1009497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cd3ed74fa83fa2b468b676f25db76bde0963752bc9091e2f4a99e1fd1a2ec9d. 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/USUYG1009498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x649ef9b79bd4bb8a55df0709c211c035b7d5c75492987631e71d2f1ed5eb9f6b. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USUYG1009500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x510c141f146d9d4a397b8230c1079aa17e7dca66a5e94c656a6faba8b39997bf. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USUYG1009506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd4ba3105db5b7db4899e35e07377dc2fe61d504cb474353dcd5dc7388948cab. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USUYG1009507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe488a5e20c8807a21ff8992758cf919dc433ffd797ad5d63895388601f8f32a2. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USUYG1009508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacd91f3d0628c69c1558655c1ad2e1a598b6a584d4228f163096c07ea13532a7. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USHM81110693.
Live By It (Remix) (Feat. The Jacka, Joe Blow & Berner)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88873d62650d27821f7d15d3b688b824bcfe98fe84414158a46eea12b62f5d2d. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USHM81110699.
The Bad Guys (Remix) [feat. Chey Dolla, Rondoe & Gap]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb45cd816fe8f69c9dfe2385808caffb28e1d779633d5e7db920b784a09a14c8. 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/USCGH1965688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07953572dd9cb47f7b7519e831fceb560858500ca4d0eed42d9fd035d92abd22. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USBAE2205719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c1e2f6dcd55f23004b021fa1d493505d8ba64d9ee8561111ed3a4af73ef1cab. 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/USBAE2205723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc926aeeb35338f3343b0248d9faffe3fededde224335198382e89e04b873efe3. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/USBAE2205727.
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0def4572b9532998eabc5a9a15b2e5a286418b39b8a94283c74cbdd8aab5918. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/TCAEG1918141.
Every Day (feat. Rich the Factor & Ampichino)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a0f105b60bdf6ac7c0ddee1fe00811009e685da07bdaebc71413b9a0d59f3a5. 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/TCACT1635914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a678f42a719b3befb9c2e57232ab1fad3401a77d09ba5373e195750c0fbfd0c. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/TCACT1635895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d29b1dbea4baab6602695ceaa24bd5d5651d1d444018a70a8394f74531313dc. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USBAE1307552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x941f7c252ca93a7a736b1ac36085f4f5571b89d0f40a60b19674fb72192d67fb. 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/USBAE1307554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa483be6d8054551ee7a02b453fa6270928aa1554560d97ddbc8092b47712e249. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USBAE1307558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb78e7000227fa6ef42f7e938d5037450dbbc00087fe060773a136259e02dbbd0. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USBAE1307562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1b881e69c21cdeb19e1f67281d32b5ebe2dd06deb53ed9717a4c0b25b1cb4bf. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USBAE1307567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf82b10d492510a5903059a5245f4b046360f4c1059ed3fb6bfa188629d9688b. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/USBAE1307565.
Couldn't Believe It (feat. Lil Rue & Sleez)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe671ada4ee133523d83995378c5af6ea7634bc29660ee4de06c67d41859dfd69. 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/USUYG1199680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe7f1a1d29cc56b9fda6f52344f25331592a868d69013f8426f5454da8fcb8a8. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USBAE1307585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88f999a220c405ebf510482f59cc817e776fd8c0d58fa0ce5c854bfc1af4c31e. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USBAE2207705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb91919c6060f08723283be651926327936f543852877f8fa48f25c1bbe377ca3. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USBAE2207706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6d7fbebd95f3966b259e859d1a2bef9a8d3b10e4fc8cc200378537e23aa432b. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USBAE2207708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabd48b302d9fe2e1b94d6e5193afbd72eb58139ff5eb0c1cf352068f65ee3c3b. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/USBAE2207710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x388653b455b76fe61407b1320e8a3de5833eb337f5573062e188171a0b41dc4b. 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/USLZJ1443471.
I Been Hated on My Whole Muthafuckin Life