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 0x145987e5113be25921430dfbb9e30c7346247adbed2daccddce0c4bbcf7f1b3e. 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/f4a5045a-be7a-4090-94bf-032e8c2eeba3.json and https://artists.proofprofile.net/proofs/artist/f4a5045a-be7a-4090-94bf-032e8c2eeba3.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 0x3993cc2273b1c83d1234b2fd81867a64d63dd421e7653b91f9cb50a1a48f0de9. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/QM42K1717332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x884ea5b80f0c5cb435df6a1d7e4223a5a8e37a7ce4f4f844bc1671639ba8e7fd. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/QM42K1799315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3473ffac03d6dbd769e1f8dc4f2223699a9361fe88156b2b70a73580b9b243d. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), 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/QM42K1606076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x351040c82470cc5922d75854767c1488126d2d9a7c8238061e70335d7928643e. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QM42K1611988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8299f4f5ec02897ffb4f3e736a2e2f0e3366e691e72a49f23b3a9aa8c686aa67. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T10:57:35Z), 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/QZD442000079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3900cacd8a738bf52057889860912caf06746f061eaf0763240d74ece6910081. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/QZD442000080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x393af3c94df66d03d4219c3e6f5f869052b20d8664dba7bb45def0b846e567e5. 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/USDM32004801.
Ain't Seen Nothing Like This (Arknights Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1c7ab8251b721f0f7171905e2a25730ae198f18bccad44e65706ba4a4633540. 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/USA2P2206018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa611f3737420318aa297817b70581476172ba550d7526ce2abc756ac1bbeba5f. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/USA2P2221168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebbd23b903f966d49c4fed927c3006f6f24ceeec2adff1376fa4541b9002ad26. 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/CA5KR2309063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x891797a75f114a78cdf5532cb0664a1088cd8e385bad921d1eadc2d51c20dcd9. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/CA5KR2350749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd781b07539a3c26d64403b3e97d854acd82b5bc44d0767f3e567dfb4c88efaf7. 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/USUG11701647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd35d932e707efd7320ecc5ea1711964d5fcc3f4241eddecc452e5405662c91eb. 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/USUG11802594.
Summer Vibes (Feel Good Music: Deep, Electro & Tropical House Tunes)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc234839eb1fd09a3c5940bed127a8305b3af2a29bc4e1f3b430fb71277e87c5. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/FRX281560597.
MOVE TO MIAMI (feat. Pitbull) - rad cat Remix
MOVE TO MIAMI (The Remixes) (feat. Pitbull)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30949cadda0d094a754a0ba2f7a20b2881140dde4474d29917bcb8d85f765543. 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/USRC11802490.