Eric B. & Rakim were an American hip hop duo formed on Long Island, New York, in 1986, composed of DJ Eric B. and rapper Rakim. They first received acclaim for their 1987 debut album Paid in Full, whi
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 0x0728d83f16c3e350b062b51f33c1d609e8f571a5fd2646a228f786b757a9e6fd. 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/e661482c-6160-452a-8b8a-2dddaac97d5e.json and https://artists.proofprofile.net/proofs/artist/e661482c-6160-452a-8b8a-2dddaac97d5e.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 0x9bd414f18422dee07fc5d8895734acd50e05c441e8c7af2044702b08ad4161f5. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USIR28700018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9eb4548e9fcc0eab0f6da5df27238e63ff74e632f3be59e3ccdd121f7a69ad5d. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USMC19238047.
Paid In Full - Seven Minutes Of Madness - The Coldcut Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3322ccbe0f79646da6b362ac4f97c214dccad2783645caab976e43f85d29290. 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/USIR28700379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb622d2ffaeecb301d543a9fa384a1b13fb9caca6bc3107369aeab32812be349. 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/USA560803222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a9d8b856ea759e339de6b192d79503a319a3c5e7ac42dc06a2d5d0bb09d1ef8. 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/USRC12301938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9eb4548e9fcc0eab0f6da5df27238e63ff74e632f3be59e3ccdd121f7a69ad5d. 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/USMC19238047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9eb4548e9fcc0eab0f6da5df27238e63ff74e632f3be59e3ccdd121f7a69ad5d. 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/USMC19238047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9eb4548e9fcc0eab0f6da5df27238e63ff74e632f3be59e3ccdd121f7a69ad5d. 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/USMC19238047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bd414f18422dee07fc5d8895734acd50e05c441e8c7af2044702b08ad4161f5. 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/USIR28700018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44c25f077698bd00cdf7ae8cd1a1f05bcc211fec4711c30b8b1ff828c8f1b048. 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/USIR28700020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e4cdaa8dd59d08427a213f51a20affec0edbbfff7196adf60564ebd35d7f01a. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USIR28700015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e4cdaa8dd59d08427a213f51a20affec0edbbfff7196adf60564ebd35d7f01a. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/USIR28700015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44c25f077698bd00cdf7ae8cd1a1f05bcc211fec4711c30b8b1ff828c8f1b048. 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/USIR28700020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9eb4548e9fcc0eab0f6da5df27238e63ff74e632f3be59e3ccdd121f7a69ad5d. 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/USMC19238047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e4cdaa8dd59d08427a213f51a20affec0edbbfff7196adf60564ebd35d7f01a. 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/USIR28700015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc51d0eeee28de91f98b908c72cf7b99d6866aaefacd6d05f91e80b5323a18da3. 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/USMC10001310.