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 0xfa46f67f79300c07acb5d9e40a00a3dc60ea1c031219fc65a15ff605833c9247. 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/ad1579b0-bf82-4df5-be18-e869eb13e6ac.json and https://artists.proofprofile.net/proofs/artist/ad1579b0-bf82-4df5-be18-e869eb13e6ac.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 0x0876e30a2984cbae2747a7a7c66f9fc19e1b373db8286b26e2f956b46b19e328. 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/QZPYN2367673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc5a7e71ae790911709684a55a7b8ab464fdebf157bd429005eba7361018884d. 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/SEWXT0800101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e47c8da9d631c6869f31ff20b534b5efb31d036811934b5eb23e4cb30b827ba. 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/FR6V89701061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57c32c41225805762280c22f0d5ea298c518a1bee565c3b2c6064623dab32f4c. 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/FR6V89701062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbca34db6145fd45bcfd6d2050093f147369c6893543145cc407fd7fc69cec6f. 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/FR6V89701067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ad6bdc1edf4423345ec183ef027e3d4683993841fc94d1ac2018b2cdfb3bd70. 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/FR6V89701072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03c1de4e0716cf2af11f651f242aa625755125d0dc1a3b34c29cb35639591fd1. 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/USA2P0821462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd783743500efa82ab39508bf829dedb6d0e16ca4a4e0d1b5b30941af8d14ef25. 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/USA2P0821463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd25d5a7bbb64f5ec78bf5dbe87100cf17e4ebe1a34cad2c702281b7790f278b9. 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/USA2P0821468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4f818ffaba8e652115d70ee9e3c29e4dfe7a5a0869636244984a4ac3dbb99eb. 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/GBVVQ1501577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x835245e04d51b78c73157feb0fc5ef28500facd71407f107a75f5b6e32ee84f8. 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/GBCMZ0501128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x151a9d58c40e6f094436a4613026bf327f19a6be5c8316fb2eb8c461f5c68330. 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/GBVVQ1501578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe171173d62a5cb599449eb0afe39143bdcf65e6747a2219e2297cd5e88cd8282. 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/GBVVQ1501579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6665392298755e3bd606269ec7a32890e477c9eeff9310c36225a2434f5a5cc1. 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/GBVVQ1501581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd695dcf0dce0acd7626bd670c31eed841eae28c3cf256700ce6b33fd7452dc9d. 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/USL4Q1855522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fac5db281774f4df58cab6e0bc4d982ab51902f06fdf5396547e33aac26722f. 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/USL4Q1855524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x807039df086b7a5c6325acb7e33d2528c77ea40b63fe2bc536cb6e32beda97cb. 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/QMECT1500014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94cb15aae30660c765784bad31ba504fcf7ae6dfaff9fc0badd3d6ed4bc89b8e. 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/QMECT1500016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8522601c795bdbef172a8ffffb8afcb87db83d272575ab3ccf15162e3b214410. 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/QMECT1500017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8363d01e3f6f972acf5f3704b5c215ad69be97a37cd0ad63aa90875fb027c76d. 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/QMECT1500018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f0b40d792cffe9cfb7b7b7ab893237b22cad4ba102a5e55eeb76502fdc00c30. 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/QMECT1500019.
Stay Humble Album Vol. 1: Soul Roots Riddim
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9ea75e3b48a3cacee8433fd206ccb0403c8040fe61d15f869f6c3063f559915. 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/JMA271500760.
Weedman Dubplate Mix (Shashamane International Presents)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x096ac177e2848727d93107ee3d3897dc8adc748ffa66e9da1dd5e89cb8ca451c. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T20:55:07Z), 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/USVPR9601018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d345f61ed11970a9676c934ee099463aeffbffadbc40c25d6694051951c45e7. 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/USVPR9601025.
Drumsong (Continuous Mix With Mighty Mike)
Xrated Gang 3 (Mighty Mike Continuous Mix)
Heathen Chant (Feat. Mixmaster Mighty Mike, Continuous Mixes, Mighty Mike)
Xrated Gang 2 Continuous Mix (Mighty Mike)
Jet Star Presents, Reality Calling Vol. 1
In The Producers Hot Seat Vol. 2 is...Charm
Roots With Quality Best Of Tabou1 Scroll 2
Heartical & Bdf Present: Universal Tribulation
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b91ab85dc2ada637c944aa4275928a8a2d122006acfeb8bd1cdb3699fdaa770. 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/QMBZ92061851.
So Happy / Roots Doctor (Recession Beater)