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 0x4f6d1bad534538aa0a9850ed4e050324573c5749b8e18436baae77318a0deef5. Chain 2 (Bitcoin): anchored in block 953759 (2026-06-15T08:04:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b261a27b-e480-4964-bfb4-167635bd95ba.json and https://artists.proofprofile.net/proofs/artist/b261a27b-e480-4964-bfb4-167635bd95ba.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 0xd678a2263c40cbc5a6d8c9c04d36c0524beb20dfa1187d948c8e42d9aa04de1a. 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/TCAGH2237698.
Wild One (Acoustic) - Live at Studio 601
One Time Round (Acoustic) - Live at Studio 601
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafd87e8b256717be32e87fbebf1fd084fa8e9a303a8a94618fd6c3e86e9fe066. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZFYY2518347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4968077c1420fdd52e8eca9e0fa83d3202b1fd8f9cacd20b6a608b5996eb5bc2. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZHNB2512683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c2eeeba5073f48ecfcc49171e62f204e1e79d5d985234d7ea45b31bab75bb5e. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZES62558214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafd87e8b256717be32e87fbebf1fd084fa8e9a303a8a94618fd6c3e86e9fe066. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QZFYY2518347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae278c11433d53042fa7af9f60500377696e33f9b06de010a5b636fb515f36e5. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZK6G2545926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4968077c1420fdd52e8eca9e0fa83d3202b1fd8f9cacd20b6a608b5996eb5bc2. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QZHNB2512683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c2eeeba5073f48ecfcc49171e62f204e1e79d5d985234d7ea45b31bab75bb5e. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZES62558214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdbbd47a713747ba3c701b95d2c8d7c824e9bdae403485c25f7f78d82c6d3198. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZNWW2595553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae278c11433d53042fa7af9f60500377696e33f9b06de010a5b636fb515f36e5. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T20:05:20Z), 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/QZK6G2545926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4968077c1420fdd52e8eca9e0fa83d3202b1fd8f9cacd20b6a608b5996eb5bc2. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZHNB2512683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c2eeeba5073f48ecfcc49171e62f204e1e79d5d985234d7ea45b31bab75bb5e. 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/QZES62558214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafd87e8b256717be32e87fbebf1fd084fa8e9a303a8a94618fd6c3e86e9fe066. 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/QZFYY2518347.