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 0xa93694ffb50844a4908750954a571b2b19910a54066f04ec1678c0bb3d85bf11. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0d95b06b-7a69-4ad0-a308-4ffc81f463bb.json and https://artists.proofprofile.net/proofs/artist/0d95b06b-7a69-4ad0-a308-4ffc81f463bb.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 0x100bf1713d21a59e08d85988644a81e991bfdbf85e7b79faeacb6627b73c3d87. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/TCABU1468956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9ac25fb33b82194f0b5352a03101b595e2de97f141a6e8c28abb7f4f57da91c. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/TCABU1468961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bc49c30a90e638d9984c74061df8100cdaa944b2bbcd7a33c980a11dcfc1d82. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T01:00:59Z), 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/TCABU1468962.
Live Slow (feat. Herbal T) - Extended Album Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d4641a01633a3b422cd14c71c485d0225e160e90c65ac24eea5f33ddde2cdba. 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/UKB632200010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82444f6cca0737e3b58d7862d7fa8f68320145dd6d900161338443fe2e8ce4f6. 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/UKB632100007.
Take It up a Notch (feat. Wax & Herbal T)
Funk n' Beats, Vol. 5 (Mixed by The Allergies)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cb0606f9f83cadecd23595b4c47d0f12638b9b0ad5a7e72c9026cdc564b75c2. 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/UKBQB1500104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x258fbe01eb50c700722421f7681f1ae48be174f95d4f9d78e74ee775f079908b. 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/UKBQB1500156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6bee2def716b225ff366b7891cbbee460c025ed8ac86f6c2c846fd1b4d6eef3. 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/QZHNA2017765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x950015f38fe850411e4c92fa88466232737f59276de5d9a055aa6448a65a9573. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/TCACG1536630.
Summer Breeze (feat. Wax, Breezy Lovejoy, Dumbfoundead, Herbal T & Ak)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd543e545756f190b55c2355052ba50d62032648b0102c63d7d56d9161655ed5. 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/TCABP1329166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f92ac160f28778b68ea9da4ce0fc1c7d81df0b2d0148769bfc255796b05f3d1. 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/UKBQB1500191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b52f72b6b9e5c927d91233be586b5f597098885269636e604f5a5045cdf755f. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/UKBQB2400068.
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
The Craig Charles Funk & Soul Club, Vol. 5
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b25aee529ac88bfd80fef1520e157d447a6bae6bfa13036ea75b48909901250. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/UKBQB1500102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c9d049625dd46e3c655699e54dac631997da682957a2923d48251de852624a2. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/GBJSH1229407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93f6cfd7f9d5bf9e036f9d77bb98ae88103e569098549052f6578c815ba18166. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/UKBQB1500078.