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 0x96416558bf31c53bea14904b5711d786d95807e271e224d6d9fb362f6c356acd. 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/853a3ace-68f6-4800-897f-fbdabcd37b99.json and https://artists.proofprofile.net/proofs/artist/853a3ace-68f6-4800-897f-fbdabcd37b99.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 0x2387b748c059df3dc4010c82d471e90389d80f8b653557582b11bf2102344e1f. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/TCACK1524482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ff1577f9b0a80f6c87c3a4b01beb9aa4e725f862993dc547c6f8fceda70cf74. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/TCACL1644531.
Banned From the Motherland (feat. Jay Park, Simon D, G2) - Single
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad05f920c220a3aa49d2ed2556f476102b7451a7eece814eed4faa41cd062dcf. 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/USUYG1108442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x909f95a49e2b64b9a743c00800d1352d752ed6adf9d5d1d58ee4c258a6c957da. 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/USAT21600103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03b6697fbab0995760730f02812b470d757d5c337a6791159f5511b82ffecbf6. 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/USAT21603644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0ab91f587e4f4bde0a7892d1cec3da2cd5bee942ac7c69effa086c7f789788d. 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/USAT21700040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a88d18438fcc64b7af51f8b4c27fc20f63ac0d216bdade7d2566dad39d9da7b. 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/USAT21701904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ddda04866663ed82348ced32fb1eaf3a3305ca2adb96c03137e4acc276837eb. 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/TCADI1708995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99452bd238722f88a027362f928491a21f9b6e89ffa8e3588f8efa13930b8091. 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/USAT21901372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99452bd238722f88a027362f928491a21f9b6e89ffa8e3588f8efa13930b8091. 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/USAT21901372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf889e9d7f18775de8928fdb93be5fd9d969ff66f398d724ae18ec76137056fb. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/USAT21901373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2b688ba11b756c09d3fad1391295fe850ab3ac4026708fe415acc0f15cd47a5. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USAT21901377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bc3e8aee6f684b25f847f25e2ef6518178a20d7b486b771ad55b111fe6e35fe. 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/USAT22101774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8463fcc3490e104fabe8537af1f722f85ff791effa79b6c47aa1baa247c6b3ac. 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/NLCK42214635.
Supersonic (My Existence) [with Noisia, josh pan & Dylan Brady]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x674dfdee749e80325f0b1cf2baaba3c3798f20810189af4bbb0633b93439d446. 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/USAT22101776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6ca348f7642cdd8f994ae8b347e761d5f68c8f3345b88bef83126b4123aa32d. 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/CA5KR1946125.
Whiplash (feat. josh pan) - Whipped Cream Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9af9818a178cd857a7801c3eb27c3dd41b616c7d5b9998e1920ed4705e2c7efb. 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/USLZJ1684660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35469169001bae12319b335ca123782b6594f4947eb671854a9d74bf348b6926. 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/USLZJ1602090.