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 0x93c67c9cb4330d4eb5ae5ea2aaa930a5891b6b88f1e7367e7f981f4d0a7f7921. 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/1b962f67-c75a-4f17-aae3-2b6fb3701407.json and https://artists.proofprofile.net/proofs/artist/1b962f67-c75a-4f17-aae3-2b6fb3701407.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Tejano Music the Best...20 Años 20 Canciones (Live Far West Rodeo Vol.1)
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 0x2bd2f83d1be2617611d3bfb40c29ddd7691da1dc77437b33d518c58738a16dd3. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T11:27:09Z), 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/TCAGD2226523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x788c0f8cad28d1b823c949d476590537aba20e8101453c4d699ab8e94f8e2630. Chain 2 (Bitcoin): anchored in block 957767 (2026-07-12T22:25:13Z), 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/TCAGD2226531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78b6d6d9a25a21ee4d3e56a5fa3d0c44852a48f5896efcd32632fdecd018d3dc. Chain 2 (Bitcoin): anchored in block 957767 (2026-07-12T22:25:13Z), 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/TCAGD2226535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8129599f8cc557d8bca7b4000266832223e441d509cf34aeb1229373b936a1bb. Chain 2 (Bitcoin): anchored in block 957767 (2026-07-12T22:25:13Z), 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/TCAGD2226538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d01d1e0a0e75a462162f64ae18b6a0c556463702c3a3c3c796eb4605a8978d1. Chain 2 (Bitcoin): anchored in block 957852 (2026-07-13T11:25:45Z), 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/TCAGD2226542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf045e690a0773a84aa8ad57c3e2e206b8fd62c57bff53fe58f39bd154b47301c. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/TCAGD2226547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1118b3a18f9bc62607fac66ef17f3004006c54c914393ad97cf62a5ed5eb9bf1. 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/TCAGD2226550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e37a824971854b17994a251a8ac454690ea603dc46ebfa3f0773fd4469350e7. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:54:40Z), 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/TCAGD2226553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8f0546d72cab68afc1de46f097951712b0f725e7a06454a654e8beca57dadf2. 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/TCAGD2226561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0325025abe40ca2a1b19fffafdeafc13399b7f6a5790772d11dd346caee5ff5. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/TCAGD2226564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66402e527172915ace205fb7c472ce98f2b4546fe6e3e74f7bb8ef7cb92e8994. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:20:49Z), 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/TCAGD2226566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96d623a6fded0e40e9748946b12cbc0222e894388e8f9b02cb16632e350455ca. 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/TCAGD2226568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x433af8db675ab7a4c286573795cc60c9dcfad15bc9bb224988d831f9f62a15aa. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/TCAGD2226571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56a6ced68e231233774c07a4d0d6bd3619af7d99d9f202a208af29097c343e40. 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/TCAGD2226572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x835e2f607a71e991ed8bc5303e103fc275452e58f1c2d98ce369586e6e804b50. Chain 2 (Bitcoin): anchored in block 958087 (2026-07-15T02:56:49Z), 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/TCAGD2226574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d16273003231f6836087d121c0da27fd8c86b3557594a4f35251ab4925882dc. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:48:20Z), 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/TCAGD2226575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83b9d6732e1d5d63dc4a760db5ab54046702a71f8c5aef56adb74df67ee3f52c. 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/TCAGD2226577.