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 0x977d6ed1e041f61c41c4d130586fc0a27bb39371a3fde2993d7669c25886087e. 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/df43b921-188c-49c1-a792-ef710841ccdc.json and https://artists.proofprofile.net/proofs/artist/df43b921-188c-49c1-a792-ef710841ccdc.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 0x65163b0619387703965c4d407dc7c7693368c82a185c5919f4a9d78e415acca3. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QZB4J1807104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc0ee130610bf69eaa59ddeb1955fc188067df8266c1c2e1e576f21a3214bbb7. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:31:55Z), 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/QZDA81819801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa57ad91cd34bed06c1c4466810605a8cc1f0a2bdf8ad88671c4c850f4d5ec12. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/QZ8LD1967328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdacd26136873378668106cda9e555532ca7f697c40deb93d9ff1376de31ce307. Chain 2 (Bitcoin): anchored in block 959069 (2026-07-22T01:06:44Z), 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/QZDA71984964.
Inside (Inspired by ‘The Outlaw Ocean’ a book by Ian Urbina)
Inside (Inspired by 'The Outlaw Ocean' a book by Ian Urbina)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4421b7c3b28bff068e5097db2c4ed5a9c22d445a265a3a198aac74280170fa81. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZES52127104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62390439c8371c928b648b199ef3315ed96c70ed0305005eddd4afc6370bfd34. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZFYX2027116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb29c0c8f1a56fb72e6db30bf9136724c8becbe72063421bad646c5ec987985d9. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T07:27:25Z), 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/QZN882134995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a8ea4d91eb586c2ff4ab384d2507f4abf6b32a256a17275fbd43ecfd1b1e010. 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/QZN882160183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d714c6f91cf8312d9e8339faf3e53353614e07597d3b38e9bd7cf78b54fba67. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-20T12:06:52Z), 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/QZMEP2282674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdce94ea06644006c35e66e900add85ffe6c259ace8a68de1ccea4174c41f2f75. 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/FR2X42390614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe26b99a4454e2d6a8ddbc44bd306811cf91a944b1c305a1663f244f968997102. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZWFX2514603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8df0e6f53734fee036ac563ce611bb9bf5163a749f2178ef095bd58ca623cb99. 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/QZH6S1900424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x795284137b6f16eb177ef0b254a8be5cc0d19885481151762a080fb21c45a92c. 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/QZH6S1900444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27ecabd4109a681d4b6591051ded3246daea850f6b2681aae4024de667e6a8a8. 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/QZH6S1900343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e5bb77ea4549ec89ec99803b8031bef0315d7b0bbb0d5055e27cf89a16286e9. 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/QZH6S1900346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4db5949b1115f726d6c849a8cab75771b8c2e026d78fff5f795308147ddaa06f. 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/TCAEN1970787.
Lofi Girl x Chess.com - Chill beats to play chess to
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bb0833955507d2c24fdc72b895dea5b4f691e95d642d999034788f16a89b56d. 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/UKZGC2309075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cdd4b8de413eb2a00a285c06daed017694d0d5a3c60dd5e5f6e14d139cec605. 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/CH6541885971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7ffecc5536c36fa3af8ca39a68d5ae9782f4174d09b97049fb28074cf5d6b66. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZN882127860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e46b7434b4fde66add63c89c93cb4810d4cfdc6c43ed98c9563b787561d7e7b. 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/CH6541941301.