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 0x26a12939d64beceaa55396c3ac66a195268d776ca823badd8838c20a97947014. 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/72388c54-dd3c-4eaf-99f2-74e5a4692756.json and https://artists.proofprofile.net/proofs/artist/72388c54-dd3c-4eaf-99f2-74e5a4692756.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Most Known Unknown (Dolan Beats Classic)
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 0x2329b60eff777933388a027de01a8a94704d6a2c22273f8865a0ff70549735e8. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USLD91713630.
Drippin' (feat. 21 Savage, Lil Yachty & Sauce Walka)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf45d081f3dc58d9708277b9c9199e822ef5ee4954f5772ad4894282f6196bc4. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USLD91713631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x902fd694d52282fde8d83bcc7ccd98fa890d5e01faa613fe6355b296b30a7387. 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/USLD91713632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fbd2ebd80390aa0063a08f5a24d2515e58e29e328458ba4e3aa7f7c5dbede8e. Chain 2 (Bitcoin): anchored in block 960113 (2026-07-29T13:38:16Z), 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/USLD91713633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x550e4de2aa92834e9f4f2b6b3548e7945e92e5b30b164d2e392412d6b4964642. 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/USLD91713634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa714867643a22476ef1900dd62673c5458890d26adbe2e0631d4ec2c7b3fe742. 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/USLD91713635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ff18110ea3e385efad8b0f286b8a96778ae046f5f3f8c75056362f9355a93c7. 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/USLD91713636.
Like Wassup (feat. Lil Yachy, K$upreme & Bigbruthachubba)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4fcf486ce8ef7d75c4b9ec77c9213fd0d0f12a29a148faded5b1750afa3cf53. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/USLD91713637.
The Spot (feat. Manman Savage, Key! & Hoodrich Pablo Juan)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61b6fb153d2edc70c8c0b6f9f0fd63f187834cdd442a34c796817254447d56dc. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/USLD91713638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e4796c70957851b687853432a4ec29d3fc0db0a1a270513358e13b27ecac96e. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USLD91713639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05a155b968d70967745ff48811f3971455526ccfdcf66a95f4a5b5fc21be2fac. 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/USLD91713640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x214afcbc7548c309e797e57a489dc663313a0f8579ae3e49ff53331153b092b5. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/USLD91713641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6321e1c3cbd7d9ea54fe043200920e01bfe1a35b9bbaf91e7a21d976a3c21a7f. 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/USLD91713642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f8c4b3599abfcdecc60fab9c887863f7e649529aa8f53f87679f4ab79677835. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/USLD91713643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7df2f4ceca592926d75c49013cd3fd658763b36975a01b8a94de0ed2c5274ef. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/USLD91713644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dbc464dc43b818627300e1a24ce2cacd9a943d08147396e1f8cc0297c43a7ca. 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/USLD91713645.
Neck Shine (feat. Lil Yachty & 21 Savage)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60d849a89ea306d698907f5e23fe3243c55eee340b702e082e495cc6b7be8247. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USLD91713646.
Roses & Bentleys (feat. Shabazz PBG, Drugrixh Peso & Drugrich Scarfo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x235660c97f4980bf35c3298d001dafaf92b7112537e5b625327825687cc4c9cd. Chain 2 (Bitcoin): anchored in block 960167 (2026-07-29T23:42:34Z), 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/USLD91713647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd98ce482855d95b22076f54b60ffb03f4671d98c1cacee216d9fe3ce35e7162f. Chain 2 (Bitcoin): anchored in block 957039 (2026-07-07T12:58:18Z), 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/USLD91713648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e285223f48e1d7c11fa1764fc16d39edaedee671e019d361ebfa58f049150f5. 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/USLD91713649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x738b9e8763b66ad0a75b3a6a5003f1d2f0681a3b5349bb49baa8d03dfa36b795. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/QZQAY2532916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf056945472dd2a9c23af67d82fec334c280d37269701b93232e4f9b11b71ebb2. 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/QZTLA2537167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd61f3ca85b6f1e1a20c4e34eb30ddc3e0fb48d72df371444eb4ee7620124e177. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/QZTLA2509127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9717d8e438f8537f94bbf57977f684af5871edfd776892bd954ea5fac665c9fa. 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/QZTLA2588454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79dccf4b4df08e68c3506579cbeee8ab3a9e765afbb54b4a0a3de379bb6af2bb. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/QZTLA2511885.