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 0x934bed4fb6b91262eadeaee514df18305213856356e0ee4e2d89b131b3f242ac. 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/2e923cea-7e88-4635-a18f-9dec0c1b0c4b.json and https://artists.proofprofile.net/proofs/artist/2e923cea-7e88-4635-a18f-9dec0c1b0c4b.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 0xf4b148c94856bde8b4fec8c2fa0de4b175b4258c1d414cdcebff7f7ecad427f0. 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/USA2P2333544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdec38e6f9ba674edac3563ebb3e4783e7d8d50ca6a0e7015f98739d47708d294. 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/USA2P2333545.
Nightmare on Peachtree Street (feat. Freddie Dredd)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd964aa7dba64fc5792be654ef7494b7db9b606ea8c8d2cd2bd3eb549e594bf5. 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/USA2P2333546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1d60ed1025f5293f165ee798ee5a4459b371c041799368217c0db6f9fb2595b. 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/USA2P2333547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ce2dd0f7bcd2dc2a9581fef34aec38d7fcc1b6bab4c63fbb99f36d2462403f4. 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/USA2P2333548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76141d47d677b6b28916bb9c27d95655c22e1f4098916679bda2ec263330632a. 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/USA2P2323252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1df140453697fa842ebe5cdc7cde31eb371f9c12f199aea72921fe4f9056d74f. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USA2P2333549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c95d37421221f58a5c538067b402808bd98041b304196edb97ffccd5597d10c. 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/USA2P2333550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x762c18b8850715b7482eb839e04dd9f38d2962dcafd7c47cbe075bb6b65c9545. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USA2P2333551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8081fcc303ee20d8f7eb34bb6d9b2beade0dbbebd24f95375773f22b9d50f65. 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/USA2P2316906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef76157a8581efd8919279f3bf86bc8b1b087d800bbe0555da59904ec914f60e. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QM24S2204083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d088a36600ed64bbcae5a6a8c9d02817c98218495aeac9fc13749d3d555d327. 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/USA2P2004467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2f31011b33661ebfb379a944e28cc3e7d03333cdea2595aa18093009b2447c6. 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/USA2P2004468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe711282469cc83b69618a17fbf076b6b0be3ce6baea971b8a898f3eda25bfdf0. 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/USA2P2004469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c013531683cf3a9ae6a5cd4ecb7881bce5ac1b2b93cc381b074e424e5e9ed92. 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/USA2P2001439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6651a7fc146d0ff95e4533967f5ff722e57a36e0866325a9618078aac77637c5. 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/USA2P2004470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a273aae2dd0389f1c9f474defa18c8241d04f7c1c119ab6bd76d99d33275e24. 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/USA2P1963476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e8622b7d6a854f0fe41cfad0333a82b46170846e32eb627cc64a2e2b19d2b1c. 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/USA2P2004471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa37345d117362cc7ab751c3348e877dabf170c4305c069d8bf266e1761d6892a. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USA2P1958595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe2ab9e26a1faa0f6e8f283de80a5bc1fd58810ab51a495afa323d10e0a68d05. 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/USA2P2004472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1a9752098532c7fe070ee4306d64e1f662de45cd9dcc67cad8088c54ce2d3db. 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/QM24S1926160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa37345d117362cc7ab751c3348e877dabf170c4305c069d8bf266e1761d6892a. 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/USA2P1958595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd964aa7dba64fc5792be654ef7494b7db9b606ea8c8d2cd2bd3eb549e594bf5. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USA2P2333546.