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 0x473c5f0a73bd6086e86a357d4108cc267418fd693fd42bef93846510add1b77a. 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/5b9342f6-6a47-4a39-ae9c-8dde01526e87.json and https://artists.proofprofile.net/proofs/artist/5b9342f6-6a47-4a39-ae9c-8dde01526e87.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 0xd9a61a3cea38090e5a21f4ab6564a3cca64b4f70632432749e0c95914f7a9342. 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/USRE49800111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafd9040f93b1b6ca37f2cc1d5fc7b4d3f7de1826dae84271a8a3fe2829a34fe0. 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/USMC10500398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6839814e86a0a9e58013159c0786532eb72e3fc11a0739f9e44517522167359. 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/USUM70502533.
Wake up Everybody (feat. Common & Melanie Fiona)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc2cb4378e0bf2b71e7fbd4fdabb5995a9e784affa41a24d7a94a53806444585. 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/USSM11002247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ca0df0a5a04132a77e268ec38cedbca568ffb1efd9c3cc6c51a8f84f886acb5. 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/USUM71411896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61a91d72a9c73ed0db1bc9415ec1eb507c34781d6f277a0ae5f18bb5eb4572e9. 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/GBAMY0000055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14e95ec2a4ebd4ca2ed1c07ea08bbf07309c0f068d83ecc197849617dea9f0e6. 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/USUM70502504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x516a678828ea54b83631d5bd07950e03de58d444ac7c78ea191ac25bbb3cf1ea. 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/USGR10300079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x953542c7b9ed84480472b77333270f4090b7b9354c48860dcada01c25eedc7ea. 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/USVI20700021.
The Shining – the 10th Anniversary Collection
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xded8c5b508262d0497be13462c6eeb9abf362b869ef33b12bd28cca2640bd303. 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/GBEQT1600091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x646fcc652740daa73ff865468fbbe980a7803c0ca137fd6acbd97c29bf2ced93. 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/QMDA62308365.
Don't Charge Me For The Crime – featuring Common
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa91563729db93c9a32407533e35c311d3da603dfb091a6270689c0bd8ed23f2a. 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/USHR10924421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a6c97c2076a7113fc802a1d7c99d0724c42564d874a5c33b15655aa1bba0dd3. 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/USUM71306902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02f44631c92195dff88aea030d2967445cfba82ce43b562fe9530974c1ae9e7d. 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/USSM11406707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a2b4fc08855c217f2ebe673d3f32a81b877413d0a3793495b3cffcfe1b0571c. 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/USMC10500401.
Guru's Jazzmatazz: The Timebomb Back to the Future
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba95f9d642cac36656aa9b96371f0601cf75657eccb630664c005decad46ba97. 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/CH7811101462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x591a5e9265466f38bae070317b79a0c9efc97c2ad90cf15638953638bf00a6c9. 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/GBEQT1003085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7188369aa32a2a7c0e62f840e6b2694608e30c59beb54d4c43113a6d796d10e. 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/USA5W2200223.