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 0x369ca2455d9ecfc8ed5f9335ab6a6c36012bb7f67396a7ec0f6dd26b6486b2d4. Chain 2 (Bitcoin): anchored in block 953704 (2026-06-14T22:58:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/77389aab-7234-43ad-b4fb-a3bd85c2fb1a.json and https://artists.proofprofile.net/proofs/artist/77389aab-7234-43ad-b4fb-a3bd85c2fb1a.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 0x0143392e8c4225a55ba1adb02f2c9490276d99b2e953c4c80958b17cc2a404b0. 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/TCACU1656074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99ee22107bf0d6eb30097d5e8011a501aa0b226f426d37eed47c7036b837f42a. 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/TCACU1656075.
Akala: Roll With Us (Dxp Remix) [Instrumental]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c4463aac0a9b7aba241846ae80faff972374083602bc8d20783daf0ef94b3be. 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/TCACS1691707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8eac94dd676ec6c414f1fa274cfc0b3cb48b3d8b805f982af4005f654947c4b2. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/TCACS1691708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x382b12d86bf47b709b7a819d45d1d345edaf25f8067899a640e9998252f5a4bb. Chain 2 (Bitcoin): anchored in block 960163 (2026-07-29T23:20:38Z), 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/TCACS1691710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fb887d34f598c98daa2c7e7ebd9fd4055fae06d0336425db757f8ed16fa23cd. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/TCACS1691712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac6f2cdab38b554348d236836759d7767b61d7616f9c966d0352ca435354d76d. Chain 2 (Bitcoin): anchored in block 960309 (2026-07-30T20:35:49Z), 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/TCACS1691713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x531cadee3330f31b338be1ae8e23674fd4e191e8a77b3685b8ebad2e48718e8f. 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/TCACS1691714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28d06d670c78faa39d0f98622e4564fd803302239ad0072a5c09b50d86650f8f. 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/TCACS1691718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc114d4f5d841aaf54ec47ad355710c4bf56e0c16afcea3ca903251d96bf9ad0e. 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/TCACS1691721.
Mondie: Pull up Dat (Dxp Remix) [Instrumental]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdc05067c954373ebeb69eba5dd1f53442a9ed97795a983a964fd0d86a7596d8. 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/TCACS1691722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda0114c0c70dfc8c3df044171efe9400e558149eddad1dea409a6ae82909598c. 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/TCACS1691758.
Might Be (Instrumental) [feat. Gemma Fox]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e2107047bebe1edec326ebac89bd6d8588ce4820a5021c7639006a651df6ae2. 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/TCACS1691761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x008b810c6dc3194e34c353fd409a7774577c06924c4c55b0cb484cbe74ecd11e. 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/TCADH1788248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d539b1c4c5339b9667502253c2bfa114a818631dcd318dd94221b18ed826511. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/TCADH1788252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb58d8e6217e320b1081e31b769ac2c96be47d1e2cdc8ab97962190e82b02b098. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/TCADH1788255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b81a5fd818b5d952f253aa19a2a2e29500c0430c38938af9272806997cf5fda. 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/TCADH1788276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27c6604273167215040315fd790cc65acd507259ba9b978ee113a5845c7cae5b. 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/TCADH1788279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1280c3cc33c575c07254618fc0044c9806c52244d21e63eb188cfc8596ac3f8. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/TCADH1788282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfb06c206ee7f4233db9dbfb7f45c68886bef9878a28c0794d5259171a4ec745. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/TCADH1788285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e73ee71d42a5695311d6f1db7bde129396cd956fc299ae385630fc37a1b41a9. Chain 2 (Bitcoin): anchored in block 960422 (2026-07-31T15:27:29Z), 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/TCADH1788286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd61ae7ff7953f43ac9a0d146169a2261bb5a7e3467478e64b4adfa8651f6812. 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/TCADH1788288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26fe399054ee6e74e5083635d7d7f493a73f432af5f86bfe49e3882367bb7a5a. 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/TCADH1788299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc0eada47f664bc957f404a44497bd6069435bfe1b34436361fc574082c21144. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/US25X2002842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2884dfd9a8ef827f91d7d2a453e21ec26165e25674ba5a055fa7f95f3cd64e97. 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/GBRD52000162.
Link Up Season (feat. Chip, Durrty Goodz, Swiss, Black the Ripper, Flowdan & Rocks Foe)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd80111eb5b1a61bc68a4a3fe9937aba0fde0e750d5dc7cda8acb10b040ebef2c. 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/TCACK1595069.
Heavy Bass Champions of the World Vol IX