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 0x72ac6318d3332bc0284a8c15495601c2d29a6db7f9feb4eedfa3c23f00935d9d. 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/bb83dff7-4998-4bd1-9552-1ccb016d6257.json and https://artists.proofprofile.net/proofs/artist/bb83dff7-4998-4bd1-9552-1ccb016d6257.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 0x8f6883a827a7eeacef926845c898143830c5987db4c049ac4df0c8e125763d7c. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/US83Z2048965.
Exil (Facundo Mohrr's Sunday in Brooklyn Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2212602554ab9b47dc1800b2217b07114cad7505e46dae31cdc3fae54c102871. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T20:25:39Z), 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/DEBE72200806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a0af6e3c66663aa98e0f7ae1e307021fa5e4d0fe37132d021c92d5d42c906ea. Chain 2 (Bitcoin): anchored in block 957827 (2026-07-13T08:59:54Z), 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/GBLV62211903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x087f641a7658cb3573bccda557fcca41bd4ebd2810c010cef39ae524874e92e5. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T11:29:37Z), 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/US83Z2348060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8727e7b1c292604d3c18b6a9b879dc56f962d8b982658c7a7d95305b1115d98. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T02:12:35Z), 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/US83Z2460097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc265970efafdf6e36e07924716262d6e9333da3f44b9ef761433c7d50665186. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/US83Z2478568.
Get Physical Radio mixed by Mitch Oliver
Get Physical Radio mixed by Mitch Oliver - Intro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfadcc2fe664034468b260fc5a4078d2288daffe26b2e2411ca59fa4af303780f. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEBE72400594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94f32e50730333fcb3b682503a5ee3675b308bf20dcc63d99f2a1e9116050ce8. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/DEBE72400595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7029438d49dd3e3dc06abd6382479b38daeb8c2d5b917ec6325089b2c72b588. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DEBE72400596.
Bang Bang - Nick Curly Remix - Mixed - September 2024
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05962b8f93a058977bb6ba57d187549093bf0458c25f8338b44bdeab41fb43ef. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEBE72400597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6ff6fdfdc355ef7ae908f7a97ebf74c5a87822c72d7010e0a397823fde46f79. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/US83Z2501801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd89f25d015c32529acddc2560ea4ebc3ebf87c9e4f11ad5c4132251540d68a3. 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/GBPQS2400212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74f46c0b12b09a48e49bc9ce61f51cd53f711b8d9b3571d25931d01ba049c1cb. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/US83Z2032929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c34520ef7036cb15f8480ed00e2e4ebb80f1446536f9874257843a613ee3fb5. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEY472476851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c34520ef7036cb15f8480ed00e2e4ebb80f1446536f9874257843a613ee3fb5. 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/DEY472476851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0065e57c632cbfb0fec363e34eacb39feb6277de98cb2262137feb4441bba039. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/UKSP42300021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7d46ed9256362379e366e362d7b798ef29076f6dfe9d06c108e2f37df51e485. Chain 2 (Bitcoin): anchored in block 960435 (2026-07-31T16:33:26Z), 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/US83Z2201976.
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