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 0xcd7f7eaf8082280f28bded4211c2a4130ef1b3e45d43519675aa1ce06574a56d. 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/8e0bdbbf-6a51-4a4a-865c-aca967a9f54d.json and https://artists.proofprofile.net/proofs/artist/8e0bdbbf-6a51-4a4a-865c-aca967a9f54d.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 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 0x3e653a405cab774e79549255e83b91dcf0f6ab282b789d40559ada7740087768. 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/QM24S2307206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65fff717f03afc0b812e6dc263a3d64d072766491df95c2ca4427ae19b9308de. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/QZ9452200162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcdcc960a2c842e5246a992072211b59020e159c80524312fa4f62285270a380. 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/QZS7J2140776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53dca7d48e8937aee052554609c56892e69704ddffeb3b364de5c0defe059f7b. 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/QM4TX2135579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa40b50f1663091672a50ef9c85c3668c86bb4549022b961386343b7997e251ef. 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/QM4TW2128893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb73e7d6f98e4e5d6ecb07d802cb44b14a6486b69c33de2472c5bdf086346a1b7. 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/QMBZ92015980.
I don't wanna talk about me (R3HAB Remix)
I don't wanna talk about me - R3HAB Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0569a07dc5d099221468a9ae1eafa62d453119a5e4f4870e3851178b56650d41. 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/QM7282067898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2c6ba14af2dd669e7194d1f482fb7118638769f45ac42b9dfdd312eb5bd77df. 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/QM6N22081622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf24cbcbcc85d54ef5581f530b2f9ef924a453d562d938a50e1a6c59b875f811. 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/QM4TW2010427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8253fd77ecdf821251c1c139641e739165e1896912233f419d791ad2ada981a1. 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/QMBZ91902510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9eeb1d6992c167f54a244ce93630093671e2f86b362d7109dea0b8d376063caf. Chain 2 (Bitcoin): anchored in block 959134 (2026-07-22T13:34:27Z), 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/USAT21701662.
Ready or Not (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcec8a0a8efed1ea049af7c75a18c174e4b8f176c8af96aea0b6f5a34eae4494. 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/USFM91900449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc750a2a7b9cbc555e9b3654ba5275f888763efed6fa454adac0f8b3b39a7b15. 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/USFM91900450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa664271ec539b9944107e5bfbebab2ae22662e45abd8e0d419827c140c6a5c3e. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/USFM91900461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87f830768e15c40e55f5931c5375d2675eef1bb40d7e2432c830450123525dc7. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USFM91900467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc34ff5b52d730c87267ab2bd50f5d44ad119757a9a154100cb477ec47ec6547d. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USFM91900468.
Black Sheep - Brie Larson Vocal Version / Bonus Track
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba2f9240ef067fb5c75e649ea8f2ff1bedd3247b8b614e439398d5b5918a1362. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USA172092020.