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 0x47dbb86ea42a75896ad11b4b1293ebde3c7bea45ecd1a25008357e308681261e. 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/2c07f33a-66f3-4aa6-947d-0f1a66bcb1e0.json and https://artists.proofprofile.net/proofs/artist/2c07f33a-66f3-4aa6-947d-0f1a66bcb1e0.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 0x20c075a8e3396317d6054e1fcb57bfc1a134a9f857c1eff7bc9bdb4932d71a33. 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/QZGLS2369587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1294a3bdae1291a90c764bb5b30f1a1303ce2109a5ea465583c3569541be76d. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), 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/QZES72347590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3306e7dc5fc85c5ff6c8ede9de02d6e2c16cc9271247bcae82b3ed739f645e51. 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/CH7812532940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06dc0c04f391bdce8d61931dec2e6ad9ec83ddb496821edd27e7dcafa680c016. 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/QZMZ92532106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x337138919f0c34ae7713aa817c8de3253af08d66ac7388bb3d7eda91415f6349. 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/QZTPX2428621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d7d7ae8e431cc74ef36ebc56a6a2c746161be8929f411fc43f63ebbb3c72885. 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/QZTPX2428758.
Beckham In RPT (feat. Yavi DG, Nesty Gzz & Yus Gz)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3010b85a2f995e399ed8001c48cb0f457aeca9d35ddf3d18c1cd2beeef146a6e. 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/QZJ842402532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x956044d2d081eae8912d6e68d2f0265b8b9d06ce066bd8d398d579387a3eb358. 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/QZNJX2446729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8893ab406b485ba7339f5c82620015d7aa82df8bb48e9d78bc0ca9ae44c0be1b. 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/QZNJW2461967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a4d8bb0b95b5b8133270f16aff73d52f278952204dad54a8eb6e687f7f8d885. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/QZNJW2461968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x170742de04ddff78782c2cfaaceccc7faf3bdb64b979bea86e29d61822e8e1c9. 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/QZNJW2408079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc29a0e9c80c89683d733327e8abec032fadd5d5809b1036074f32cd90e9b3825. 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/QZNJZ2355192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1995da46dc13606bd67f1bbeb07cfdcdbf440d4658f9bb3e4341bdcd08c973b. 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/QZW9L2249459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8576b72c70386890c3d006163f63c1b5b6d8fcb8fbec6dea35580d3afac978c. 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/TCAGF2293734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdd99d279f53c3a425756e20c37159864e9348b5de288bdb00b00a1d3d4b2f60. 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/TCAGC2274204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccf517897426870dfae4324546b7ea75787743a7d2bf477b5e560ca31190464e. 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/TCAGC2218767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa53ceaeab3c346546712b0ef057addf8b8974e856264fdd2a6c2fda792a89c10. 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/TCAGB2287411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f60949f31379b1cd83a1510f0826f1bde55abff2751e25f2e1dee265e8b5d61. 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/TCAGB2258665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf1efba78fd89f343d67e6f07d3711c875e869b545a01fbe949bb4c2bb4979e4. 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/TCAFZ2277900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c8f3fb8130017f8634ee4e1270c8da94256e776f1bac3d64e966ef095acfaba. 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/TCAFW2197292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9eefcdf1950694266e6217464374f9389802322ff8b6c35433ccc40a521a6c43. 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/TCAFU2159140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f3a4885b099f7d9d1fcdb48930af3c2a0e7885b63d119a28a890396bf5459c0. 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/TCAFL2148743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf47d0ba8676b5f3c541a79460e770ea8713221b835d6ab6accaa6bd94dc7ede4. 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/TCAFH2082483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60a492622b7e801f8fa572dbf6aa7c67567182627303dbe96069fcf642cc9cff. 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/TCAFF2064210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ee95d3cdf218ba17de2502efda1c72999f04ae97331edf2ed43651ad3ee3464. 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/QZJ842401122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe09cf06a5945d04801e73365cf983f9fac48e66ca497c246402ad003206b86df. 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/QZJ842400969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdc5fa9b14e78eea722ab8bc9f019ca6ef907dffc20b586700edb55a0a279cec. 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/QZJ842400962.