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 0xbe56d8f76d270104d43fd83b1cc0cbd31c7e5ef309fcf3cb631b3713fe9e9de6. 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/886cef06-b774-4257-95e2-78012f2f2a15.json and https://artists.proofprofile.net/proofs/artist/886cef06-b774-4257-95e2-78012f2f2a15.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 0xdfa69da06ae38e9ccd9223dec8117b936cf61e48b20b7f005c867e01fc3f117c. Chain 2 (Bitcoin): anchored in block 956482 (2026-07-03T10:33:57Z), 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/FRX871577827.
David's Song - Imagined Herbal Flows Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3c0bc24f0ca4901382bc81ce6bee161b8f5a7f9951bf9f3ffbef2afd2079c62. Chain 2 (Bitcoin): anchored in block 956620 (2026-07-04T07:11:13Z), 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/FRX871577829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94e1e160b5af64ca3b83667ecdefea1bce55b1210936bd2f069e87a8fcc208e0. 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/GBKPL1825308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55afa521ea1b32317dee03310b7e8b3c5e8645ab2347531639b52e782477f60e. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/GBKPL1830928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa5c547a7c2f7169ef1dc51cc9984e3ec811afebe6f61c76e439df20f948344d. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/TCAEP2052793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7fd5c7f155300e16d49d001045a4bb2b6e385821f8541db0526b3c823591c6b. 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/FRX202024413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9526a50655b9c3c2ac77e317a102eef92c2245a19b2e91a7b990b532ca0552b2. 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/GBUM72001752.
Black Joy. Black Peace. Black Justice. (Mahogany Sessions X Iris)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3893851150ee29a2465c55005e96fc7cac95f6769b40aceed3eea44d2855f714. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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/GB2DY2200047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e36a01a0bf5ab12fae3ae1606d982ea2824ca8236c15bd16852f2d5d2b84615. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/TCAFU2108709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3eac7869b6ea845f55f41dc3afb02c75d4b79ba7604600cc3df98d093ad202ad. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/GB2DY2100905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc826943e73d128b9396ed0d0226d8304d94db960d237aef6b4c5af97eea59425. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/GB2DY2100904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3eac7869b6ea845f55f41dc3afb02c75d4b79ba7604600cc3df98d093ad202ad. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/GB2DY2100905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x577c721169a820950e25fac7d45ec151e0fab77d21d56180181d136caeb5439f. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/GB2DY2200757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa68f93fbd9a16b7985db5f2e5fdeeaf397610ab8fb22db36b31b3ce8f9b73222. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/USZXT2453784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b53cafb002f55ce4b96c6603842cd656e0c7cef7d6527f080328f8081665bae. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/USZXT2454077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e368500f26ced2f23c2cbb916d2c31b96f071dc34d5c06b0ccd31db88b3d5dd. 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/USZXT2454025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacb3bb29539e90902bd6de78611e86dd25e0a87659f7b3f78988d33e780ab086. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/USZXT2454238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef726a5f8190ee21c4a20555c17b28d35450d87ea9e619ff7facdcd0067776c4. 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/USZXT2455827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e368500f26ced2f23c2cbb916d2c31b96f071dc34d5c06b0ccd31db88b3d5dd. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-20T12:02:43Z), 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/USZXT2454025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacb3bb29539e90902bd6de78611e86dd25e0a87659f7b3f78988d33e780ab086. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/USZXT2454238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68ca55e88ad29fd1c4098ca659399c5d147cf434db541cd9f56f0089189c626d. 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/QMFME1924101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9526a50655b9c3c2ac77e317a102eef92c2245a19b2e91a7b990b532ca0552b2. 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/GBUM72001752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd35624ed56fcc1e95e8ca905852dcd2159e03bf28e4845a72bca8e440dd19431. 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/ES8741609102.