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 0x52bffc5568839e2c319924485174583a00d83ea13c4796bc51b2c37ff1780600. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/77e08bc2-8fe7-4db3-8e20-1e472d8280d5.json and https://artists.proofprofile.net/proofs/artist/77e08bc2-8fe7-4db3-8e20-1e472d8280d5.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 0x6fc2ecdcb5f3615e86462a55ee40da6b5c52ae5c3e181d5a8d79f5979fa0ae13. 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/DEH742162774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x668f3071f480725387089cce7cde92072db97cebf89365bb954c316f17a2e659. 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/DEH742416787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd9cac2158dd52a2bc4ebbe816a0fc8bfc3728f195a424a5fe1fab0f2f3008ab. 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/DEH742162793.
Mantamar (Pride 2022 Edition Compilation)
The Best - Dani Brasil & Rafael Dutra Radio Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb1fbdcc92c8db2c7b8d8915dd307adb2aff1a1cdd612c88429d7e59e7a3b534. 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/DEH742213378.
Shadows of the Night - Dani Brasil Radio Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6834b38c3ee80d9f29ce70f58e8dfb1f009fe15221285499aa43fa3f150dd31c. 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/DEH742213379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8aa5a6dbe7fd70a26c18ffacda825bda9c8fc64bdbc0e700c7df8277a2c20dcf. 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/DEH742213382.
Dancefloor Lover - Dani Brasil & Rafael Dutra Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6576ee2fdb4741d051fca9e049aec6efff6769598db418053764dee8fa1f34a5. 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/BXTJO2100040.
I Am Survivor - Dani Brasil & Rafael Dutra Radio Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d585cd060d1a3092668a67fb7a4acfc1c04b0c7b69603c4568aaa6d08309d4f. 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/FRX872102363.
Until You're over Me - Dani Brasil & Rafael Dutra Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8c79d3d403351115e08b359f26fb6b2a4abbbac1b44573ae8a90ca1e02397ff. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/DEH742161123.
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
Gym Crush - Stephen Jusko & DJ Blacklow Radio Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3460f6f039070ba32a6c1ea52d0f2b6147e99b6badc2c0f89a74ee4abcf6d4ca. 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/DEH742408857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4179919fc5d81036c98914379d7081dde0455d0444a754a0c0805c22651d7e11. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/DEH742433328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2586464836314e30f70ac3fab52416ed6de8d99e87796531d5d40ae762ba779. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/DEH742433330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3391fcf32a3d15d4e44ac1ef6992ddcaecc1ffc329d94da924ddb6e020b5a437. 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/DEH742433331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01647a8d4d3d94e914239bc666d4b08bb7a10403617d4af498ab624bd2293633. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/DEH742433333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9344f2d928757bcabfde13950250d6f4b8a8df764c489cb544e0a5b91fe1708f. 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/DEH742433332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dc362e574991c763bcb5b2d0ea8d165ac6b19e21a4bcc132318db44412b2b0f. 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/DEH741921479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d1ebc74133ce4faa661ce3d5804d9bc02cb1f8084116fedaac69224a304e208. 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/DEH742047722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd198d74c80beaf2234b0d168dd5c9613a097e66f3efb7a26226b7e21114b61b6. 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/QM6N22412227.
Lost In The Rhythm - Gabriel Pinheiro Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc9cce77242a46cac05ab6da1d2b1fe3dc15bace2ced4ad94cde331f9aee745f. 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/QM6N22412207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8d534967d1d211f0eff4076e13b0d7ba39cdd42a2acc5a2169014e4e1d811f3. 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/DEH741804989.