1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x5ff255c22068b57b6b7cdb19144eca9570c368bd4da528dcb30e53d17a461931. 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/57b02227-5da6-424b-a8e4-e3f6484f5100.json and https://artists.proofprofile.net/proofs/artist/57b02227-5da6-424b-a8e4-e3f6484f5100.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 → block OTSBitcoinBlock must exist at that height 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 0xd6fd6ea30e67ec7258c18b22567cb66f288ea01e21fdc9e33a9a5385472c5ce7. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:10:26Z), 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/USJTQ0900317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3d69d4f8c7e6dad413932a5405f67c025b5c9e5f7e8c0d8ef6b761d798cf6e5. 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/USJTQ0900319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x632ae65c7ae5948f4fd7e1aee65fc7a788495a77a627f348437b6cfe10d19d70. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/USJTQ0900320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13725f4b4d99ff2316ff94b07cb013ba1b9f9b412beabcdf1110c103982a3dc9. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/USJTQ0900326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1af7aeaf9f245aa2650b4df02f334e4249d61eb2349f0ef6e3f7722eded46ad5. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/USJTQ0900328.
Popurri de Coros 6: Gloria, Gloria a Tu Nombre y Mas
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c8a3cdf53093d51a34b4d6bc5f31112bc6999b2fecaaee57fcdf5a48497e443. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/USJTQ0900330.
Popurri de Coros 7: Cuando Cristo Venga en Gloria y Mas
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbcc55bad2588bf53642c2204fb6a57b8031ac0881f437082c15fd179ac115a2. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/USJTQ0900331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b532a10b5bb2141d2f552ed5e08c352d169c4a76f38eb2b353b353306ba782b. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T07:48:13Z), 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/USJTQ0900335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbab3df1a77e6667cddb01e153a199aaec61f87a57161da14feb05048becdf1fd. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/TCADA1770195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb59176fda891f0785b4178fb4466fac1083baba59a43684a775c150f3e3fa1a6. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/TCADA1770205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73ce394eba7fc61cf79a0915b415c229a3887be268156fe094d2f08d1512df03. 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/TCADA1770246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9fe5b8271a34697136444d79ad5748364ad70f83e76d557eac432cb0c82a698. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T09:49:27Z), 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/TCADA1770251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2b85b745fb5dc970e24e41c0c6330dab6beda3d6c8d4c7351e0826d92d9e5e2. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T14:29:15Z), 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/TCADA1770255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x395e07872290a9c96ca471bd8b6956e1bef8db6113cf957bc3b4db4510b3268d. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/TCADA1770263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5a1fd1a7d7b5191de04c5d84dbbfb35adf5d7fa474007f7004941e65915bf36. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/TCAFL2102561.