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 0xc62763266227c9473a5d0ca37bcdf007c030f8b313e82eb7cbe9c641c34d9afe. 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/65d19e1b-4193-450f-a148-f965f29317ec.json and https://artists.proofprofile.net/proofs/artist/65d19e1b-4193-450f-a148-f965f29317ec.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 0xd351d4413d4508e17b0a6c10f0ff739264032fe4b42e08a58f8fb05fc3e69440. 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/CAQOI2306184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8433159548dd5e3e57836188c5656febf65b8f47eafc8f5645ba0d517216c5b0. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/GB8KE2413033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x270a7fe0db0246f0206ed2a32ffd288c9ef03c5f415c2b0e6b5cfe984470bd80. 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/GB8KE2320851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6369f8fd53045890a205db6b19db34f7d2c26e5045797464f73d2e44dcc0e109. 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/GB8KE2310195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec5e218c056cf4e41958a4574b9f9b9af1d31c77cca76d97fadbedaa8548d177. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/GB8KE2215839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00c2f2d0c239d10dd7dd5b6506fde2844d69a7863e4bc8ef668df5e6373bb95c. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/GB8KE2215840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ba34fb331f5d7c77f0195fa11206c89ce7bab17acce7470f5decdad692b042e. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/USLQ22180711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe592ff59ebacdc61dbfab9c58028c7eeb77604a7b0a625286fe1b2d31890084. 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/USLQ22180639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcab0de38a74c696f563abae9aa5cb670193035710b29604d74cefbbb920358d3. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/US38Y2304196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4f715d56f680c3e1aa32699c8083f8f582c81ee1f7d3f1275feb26da136c7e1. 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/NL1ZN2302483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec5e6e466d5486fe92062d012793ab0590b03ad99137559e3d267c294dc08b33. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/GB8KE2307195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a3b4afd904c0df4d010659f11644839f02289ae3cd3cd143e42c11b3496c796. 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/GB8KE2307196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a8f978a97eca23a99601e40bf27f362ff0052469ac9a483225de89d1025815b. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/USLQ22180560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe24274297b26ecad863224c382981b85b756f8673823344a4fea60a3c74f4db1. 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/GB8KE2304030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x705dd4bf3e22931fe3ba42425d7021fedb7c0db80e949e54c0c132da566f2090. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/GBLV62200522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1a44876be9eaba01e4237a8c67c3dcf4e4274af282e7e5a4cb8282111ee594e. 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/FRX762179748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a3a64b72924ac2560e1f8ac7e2d1f16c0aa343d453051721d4ad4a2d9ffc1f6. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/QM42K2012868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78c32936574b9721dc08ce072d85bb7f3315be9901c300855ce3ee7b6d67070a. 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/USA2P2244249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x684ccebb06acd6d170a0244e19fd9d97f209011ad539544ccc3ae7103886b0b5. 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/USA2P2244252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8814746c8eaa51e68fb0cc5d1222b4f4dc8c738384ee5a35950a319aee20586b. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/USA2P2244251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x476a144376ebd58152760b9aee0db7d7d172da5da054fda7f7522ad8d4d8bff7. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/USA2P2244248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29ec3aed61cb2b1a8724b4a2edb8177793533e9bab314e7f63cad4348b691eed. 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/USA2P2240436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45dd5e2a1a8150bc09606987067d0f8597d0290ddcf2fc3c14a214daaa01350a. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/USA2P2240741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x399eb12dad37ed7998653d1c88c39b3f4bb4238da44138e5b5012973530516af. 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/USA2P2240435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d6a6e549a2955c1a43ec048c6160794ecf6793fc4ae9c9fcd406947bc530e2f. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/USA2P2240434.
Juggernaut 2 (with Purple Velvet Curtains)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ee6a28dec4f20c6e0f53997732179a1724a7d5e8fd76a8e1350462025afaddd. 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/US39N2306412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabe71d37223fce575e3a76d5aa5137e18fc7fe07beeebde4e1cf467e4d60af08. 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/US39N2306411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x979c98be3baa444488077eff321d471c1e8103ca0ae191363bdaccbf70f200cc. 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/QZMHN2098889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8021b637d2b539ecc76ba475d2d2f5b5511b55b6f846984f7d6ba3dd379b72d8. 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/USA2P2235364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d1a1133abe768188dd81165f2b06b9b63d09f65585a47d42a9a1e5c3677c412. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/USA2P2235363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29ec3aed61cb2b1a8724b4a2edb8177793533e9bab314e7f63cad4348b691eed. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/USA2P2240436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45dd5e2a1a8150bc09606987067d0f8597d0290ddcf2fc3c14a214daaa01350a. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/USA2P2240741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x399eb12dad37ed7998653d1c88c39b3f4bb4238da44138e5b5012973530516af. 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/USA2P2240435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d6a6e549a2955c1a43ec048c6160794ecf6793fc4ae9c9fcd406947bc530e2f. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/USA2P2240434.
Yosh, Vol. 5 (Mixed & Complied by dubbleT)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b2e87e5df37ef50461812cedaddd47428657f922ca86d575a9946519f9c30f0. Chain 2 (Bitcoin): anchored in block 960298 (2026-07-30T19:26:00Z), 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/FRX452155352.