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 0x0e208326b35d12cf672abd71968256624e2ac4efe7eacc05068fe4c58c5a86d0. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f4ee9c71-ca70-4c0b-bfe3-c6a329bba764.json and https://artists.proofprofile.net/proofs/artist/f4ee9c71-ca70-4c0b-bfe3-c6a329bba764.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 0xecb7417a1c2d422b280cbe6fa2759b696e24085a3d19e8615b0102a7d9975332. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-21T23:41:40Z), 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/CH3131613279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5257e44646c73fb6ad41a8f259174581df6818c1dede4f5d08e62bbdb8e0fe70. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/NLF711806378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe69b98d23734f16cbcb4de4b033973efcab5dec7ed4ca886c9b19b01c156f202. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/CH0012000066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaced97ab588cb2f544aa00814e38cca1ea90ef69c82db3557ea20f93c2a15c0. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/CH0012000293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf845834ae610f77203606a65f8514a22c56a56424ca6f7fee46f64630ad0b00. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:36:10Z), 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/CH0012100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf672ac6b1ce3add758a4a4aa10b9a9883c0733e4a6c90f481dce756f7d37e60d. 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/CH0012100014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3197b5520a3133d2311b1338b3c02bb5c96822a8eceb3af107a3d4dacc7c57ba. 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/CYA112000940.
Did Me Wrong (feat. Georgi Kay) [Extended Mix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb103b18adadb525729d15ede54cd08144ca84c503a401d532e5ac2f69f53521. 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/CH0012100243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fa23440da835877d55b27989e40f193d0285115b5fea725dace4b6c4c23cd22. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/NLZ542101804.
The Green Light (feat. Georgi Kay) [Extended Mix]
Love Me When I'm Gone (feat. Joe Taylor)
Personal (feat. Robbie Jay) [Radio Edit]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a59be150594712411c036a1c87ae869e4def3179fa8363af648c45653e5d0aa. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/CH0012300139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3000033892e8740e0ccc9c803edc80fae1c5713a91cfe680d8d2fecc4619a6d7. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/CH0012300140.
Remind Me (feat. Amanda Collis) [Radio Edit]
Remind Me (feat. Amanda Collis) - Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda22ec585eea7bbf839a93feacefb85a654553fb0c67b76563a12b7b59e21ece. 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/CH0012400024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12eceea19af2b31ce52b3845876b65fc0d9ef0102e50dd2234779d49c1d76bfb. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/CH0012400096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x243ca3d169f699e3e9b6c76c1cbc6b1229b4888fb4df611b6f392adad56de107. 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/CH0012400255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d938570f1cf91953ccf3d3c2bbf553d9b469380f82eccf45f7bb5bdd95f7afe. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USQX91701612.
Stuck (feat. Tove Styrke) - Gil Glaze Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc63990874315d2d59038965fb7bb641bcb21d520ee80907733a2e74d2c13a18b. 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/USRC11803140.
OUT OUT (feat. Charli XCX & Saweetie) - Redondo & Gil Glaze Remix
OUT OUT (feat. Charli XCX & Saweetie) [The Remixes, Pt. 1]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd9521cfa1b46f7938d1b0a088a085ed062c53d2ee676b0e07209ad73f6908ee. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/UK4ZF2100572.
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