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 0x65d713c6d6dc19b56bf941a291e746797b4e9c7ee6ff3759d202f8bf695cdc1b. 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/315256b4-5112-4720-907a-dac7f23da61d.json and https://artists.proofprofile.net/proofs/artist/315256b4-5112-4720-907a-dac7f23da61d.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 0x6142972d1e3916dbc3877dea04d95e562a4c1840158c2bd11cae7895ea070290. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/QZDA52030632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70902cb1d77523dd64d80bfbb3390fe1562fdf90acec05863dbfbfe7be0151e9. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USSM12006245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d8e0c95b12842dd13d60512996f3f3f14984783506b5ffafd13b1cac83eee4a. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USSM12100376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75b5d84b4f873b6ae170a654b603152f92478c05a86ed25135416504096b40e6. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/USSM12100375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x226230fb4caf59df3d5c5198e15d2ed70461ff2c23d6c5032e331f1f5fb3491b. Chain 2 (Bitcoin): anchored in block 958822 (2026-07-20T04:30:07Z), 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/USSM12104775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dbfba8183d003d8379cf4890878da61af332c4f090436f0f29259341ff0b534. 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/USSM12202077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x226230fb4caf59df3d5c5198e15d2ed70461ff2c23d6c5032e331f1f5fb3491b. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/USSM12104775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dbfba8183d003d8379cf4890878da61af332c4f090436f0f29259341ff0b534. 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/USSM12202077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8c95dc9a88b94ad49c80740c9ec904120318548267199afa4dc8c7652499150. 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/USSM12106904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7898ab74244e147dbb7e01e136d9182b5b866fbafea73cceaef8f093cbf87bf. 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/USSM12204643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafeea02c7154f1de8ae7ef143c9c18c189ad133d9b524d4db1f3a8fd3217d0f1. 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/USSM12204329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc23476a018c01a9bb24315e5f84eabe2748fbce5d98a7c30cadedd6f1a55a33a. 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/USSM12204654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe17a6f6a620c42f8b48e9106fa2497749bb8b3198517f550d6808d774a6518bc. Chain 2 (Bitcoin): anchored in block 960225 (2026-07-30T08:04:30Z), 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/USSM12204661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacd1ad94c6e56bf7e0213648742ea21bbd11c3b8093146beabf871a21f02c8c6. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/TCAHM2337771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x003badc2baf239924ca148450f6a5de48c1455bfe52b9991be3ec757ed924db1. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/AUMEV2500658.
Forgot About the Streets (feat. Melvoni, Badda TD & Brillo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb541df2e4bb578242db8b717b6ee56f2266445d3801fb2e6b9437bc8e74e6411. 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/USSM12101610.
Godfather of Harlem: Season 2 (Original Series Soundtrack)