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 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 0x9d0f866bc34435394a9c1215bb98100bb83d354e957af939ae17499df2770cdd. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/24328952-ad69-4fd4-a289-8f6123075c00.json and https://artists.proofprofile.net/proofs/artist/24328952-ad69-4fd4-a289-8f6123075c00.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Adalia Rose Song - If You Don't Want to Be My Friend
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 0xae3687b2063d86cfd64005e81eb59119e296a6d0813de977428ed75f1bb72761. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/TCABJ1213603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x834e3793f0241088799e09c22aea04c8004094db9537591d6505bd5661e49156. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/TCABJ1281977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f3b22180a09c60546bf28435f7cb3bbf2a9a3ee31fdd81898177b9310fa0d91. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), 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/TCABL1360419.
Yall Ain't Telling Me Nothing (feat. Nappy Skilmore)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x198768bdd34be707f4483f0873e880c0ab0cde20f1e3014c9107d272fdc176fd. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/TCABM1334198.
How Many Bars (feat. Canibus & Copywrite)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42f987c41e82c78ea648dfc847fef8f816cf2d383e6f830ef7a53d7d7cbe5907. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T16:17:58Z), 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/TCABM1334200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57826dd8b27178e9f4c8f0da94e614bc4d110dd0d279bd29a32109cefe300df3. 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/TCABM1334206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e99aefa88f92c4f5bac7e721c9820de766f50e588da2234b8bf45772c0065f4. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/TCABM1334202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4939c86ec0f952f95e02b3f9a3a6b9b668af0c9b8a24964b7043c31a03f3f692. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/TCABM1334209.
On Ya Block (feat. Brotha Lynch Hung & Smokey Ramirez)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x863445686936b3905f4b9da6454722a797cc3e714d7fe6c340801630bf5fcb21. 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/TCABM1334210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79c2ed0ec87256adbdf8a4ae366a9844e6632f309115e00aaeff29b4d3173d76. 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/TCACS1644191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa768aeb8031a86890d2fc0a7922bdc9f3c384e68d121fe520ac797dcd44d9095. 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/TCACS1644198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ba463c6f4fc826f2aaf105d112c2b49d84604adbf2b7845a6a571284f24033f. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/TCACS1644199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ef26a1994d77a545012ccec402fe0ba9d6a7e5e9f7e12c986899c17c3788f8a. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/TCACS1644204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54d2e3b979f6ca96e090ffa2f25b511106a9b207d5e4937cf45b3a361bc8eb3f. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/TCACW1790933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa255ff5bd4701c2d11e1adfda9713a043280cb482ca675a7d50ebb62304ad6a4. 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/TCACW1790944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x295b85f1aff20575d5fe92644029ead6abcf32fa7f4684ca0dc8c50816222dec. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T09:14:08Z), 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/TCACW1790950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc73a1ede1bba6df070fb661f9ac279058c0de7f24d275f30eb33b6683e0a1e1b. 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/TCADC1734050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2beca22b0f3489ebc850497c53835556edef9b811b29bf64449b36ea6815a499. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/TCAHA2377700.