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 0xae6f4d1f99cddae0512ec4346ec5bebd5bd87f402b186bf858da9edd6ba59ff1. 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/0353be27-1249-4550-975a-887e27de7be9.json and https://artists.proofprofile.net/proofs/artist/0353be27-1249-4550-975a-887e27de7be9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Yo Ya Me Voy Amigos Míos / Canción Mixteca
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 0x50213add4b2bca718e7d17f66c3e8ef3456cebf78594b7e7d7275dcb3543a85b. 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/QZNJV2057272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c7eadc2fd56d881a10e32ee4ba14d1af43582bb52bb202772a00738ca0299fa. 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/US7VG1993088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff71ef382de598c7e63cc1b8d846ac81b66e165ac2e5220cd5b66fbd0da3b7bb. 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/GX3Q92051110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbfdab395c011c9291dcc890647e1286c106e08d0bd596482692b16861fc3582. 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/US7VG2308837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x674767a315c5f0877917efe561b8e8b10e72d457f2be35cf7818366f3901ba41. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/US7VG2308836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e94b395176684f4d8f592832740b7bc0ce18d2b634222d1bc5fde4e3356f709. 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/QZ5AB2333298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0839dc99d11e3817f87d18eb7b3dda4e96b46b6c9ae06774cba9a4d58ae711b. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/QZNJW2330292.
Desde que no estás aquí / Pies Descalzos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c1317a6b61f30fe1e33e07f624b3c93bc26a8ac1dc97f6b5aa5da4260dd8111. 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/MXF152400891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b5ff08c3437570478a27712a5119f6cee0f0466d4f57d0e196a4e949b3c74d8. Chain 2 (Bitcoin): anchored in block 957801 (2026-07-13T04:17:08Z), 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/MXF152401762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8148948c6a5fdd94a3137cde1b0ef5b2c88d77bcaf8a0dcab87f0e931573f7ad. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/MXF152500566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x914fa37753c388264f26b3e296b03cc3d3d01def0006ae70288fdfd25f082fa2. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/MXF152500568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a4d8d0881b0f63c99e4a0fb7614f743047e77b65caf70a6a3db09347cf36fca. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/MXF152500569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5aa0d0266daf623f092ad1db2ba85e2ffc042bf857ddfb2565728910285867e. 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/MXF152500570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b38aaec1fe53e514a7f5fa6798083514f33eee8a99da1424988795078460168. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/MXF152500571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x974d7790e8b66e9920667f0bbf3b6c701cbb057b9fa54ee0d094033af14ec6b3. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/MXF152500200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dcbdfb285bfe95e47091e625de327e7c64e34b85fd82d5828832885ceb22419. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/MXF152500572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x801d84fa8c464baf173f383168bca81b36a0f08859318b41018b185ba2956005. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/MXF152500573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8154b0748b86efc1822c640349c1f45f97d488d3ac27269ae113232919b6e3f. 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/MXF152500574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6eda103c49cf9961fc47e27221fae69e46353fd25a10834c8ddf25b8def5521. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/USANG2255455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbdb74c8c6bcf7e442d271a5499c5e931ef791532cbb8cc41fa34a82bae9f3f5. 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/FRX872395397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c431e583915423a332c80814e1bf428d3c479c43a5aad6f169357f3e9467e7a. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/USANG2227378.