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 0x3265bb25adc6bfd0bec173f79292ee5b0c39d12e7126fbf92716b178fda98abb. 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/98fb4d99-8f10-4076-a4ca-887eda6487a0.json and https://artists.proofprofile.net/proofs/artist/98fb4d99-8f10-4076-a4ca-887eda6487a0.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 0x0c695fc250c209a5fd8fbcbf216d6d70934ae8065d5bc8aefb95f792b46e41f8. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/DES231600040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f88b515cfa39a14ac922e91f30ba7111e7453e269bb473c8b5d4e5386731c19. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/DEUM71724130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x625637c22784f7ca99320630264b11e24429da7cddd6bc3fa2def84f0d94f544. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/DEUM71725044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdabd797ac94d61b09c526a340e854a6895f42b94d689ae9adf3edffd5c317ef2. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/DEUM71805035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13acc4c296e42be091618732ee6dd8ebfb543ce631f3abf146dacd674bccb778. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/DEUM71904882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x779b84aa0d7ab8832e909a0060f70b47e8f83b972887a84aaaed9c8c60719d7e. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/DEUM72000407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17504792514e8552543b681aefa892c1be777d6f4d4af1226ce871f1c76f1f7d. 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/DEUM72000408.
Looking To Love (Nick Talos & Nalestar Pop Edit)
Looking To Love (Nick Talos & Nalestar Club Mix)
Looking To Love - Nick Talos & Nalestar Club Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe683163a0e2a468513d227a9807911e508d8db2ac59b84ea50563975d39dfa35. 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/DEUM72002822.
Years & Years (Nick Talos Remix) [Radio Edit]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x454429b26ab0306e4448bcbc9aab946707b581a9c1f834b0875dac7749d58ed2. Chain 2 (Bitcoin): anchored in block 960200 (2026-07-30T02:37:10Z), 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/GBARL1601905.
Years & Years (Nick Talos Remix) [Club Edit]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed174665e3b125368ae5a8bad2235f75949e2d9339684108ca3e93f5fef30603. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/GBARL1601906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa140025010d69c540a44daafc75d82a5282accd2b9d458c75cce1567bec50a03. 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/USUM71902197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46ce7c439cc767acd9608911c158f1e27e035bef9cf37c67ef46ca5129d24d3f. 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/GBARL1701971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae5ad55e4a7c9c5238a9da6e029b88140e870629a2b66b432110bd4f49603f26. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/USUM71712674.
Where the Party At? - (Re-Recorded) [Nick Talos Remix]
Where the Party at? (Re-Recorded) [Nick Talos Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6325676c13c57b8fa7eb40b11ece1faa0a253ac4d444e5e39f0af4cbc5fefc69. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/QM6XS1900991.