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 0xff70d1112e58338c51f670225bca489ce8af3edaa1cd05a35b23fa79fd84dbc4. 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/cf345e91-8613-4b1b-b290-9c326693d9d5.json and https://artists.proofprofile.net/proofs/artist/cf345e91-8613-4b1b-b290-9c326693d9d5.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 0x148bf9520c5f06fcebad8ce680851292accc76b117ccf52e6005a31a65db03c5. 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/BEN581700110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25879f117d6e31f038b345163a5540ee9dbeefabeda34832531eee31d1fc46f1. 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/QM42K1981190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x397f224ede46e74844821127f2c1d5c859e609d304d22f2e618365d49f851ea7. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T11:06:26Z), 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/BEN581900315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x251f1e921dd011eec20f2b30c466d16a3ee4b1845b9541790feb22bc38d0f598. 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/GBKQU2013651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7df793cea0ff1d76ab8f76dd3828becfef825ca7505b43d8fbc60c69ed734e31. 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/BEN582001211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68c62d19f2ef862f5677d07c69f6e5f7350f25d85d5d05b16f16069db5451225. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T22:11:46Z), 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/DEUM72307116.
Patsers (From “Patsers”/“Gangstas” – The Movie)
Milano Cortina (Official Soundtrack for Team Belgium Winter Olympics 2026)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc13e281a40dd8f3cf284b5a148ca1177fcc9297a89e5dc001104907b4f705c96. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/DEUM72302181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7a073edd65035b71675e57c16059587a87b97a938001958af03a92fc798b7dd. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEUM72407264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb0e79aa9e30d8588abf365898b770026cd1df6843fbe7e72aaa21631158d214. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/DEUM72207869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c3c41a566ce4b522dd89c73aed56b681ef09e814954d73155118ffa35d572d7. 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/AUNV02300202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0104552cc4d6b63ed75ffcfaa7d32c275ed2465472b76b07efc41af579a8f5ab. 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/FRDKW2309394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7a073edd65035b71675e57c16059587a87b97a938001958af03a92fc798b7dd. Chain 2 (Bitcoin): anchored in block 957026 (2026-07-21T16:20:52Z), 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/DEUM72407264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x168b2c57dd049e39a992243dd7043f98202a6c8af744e188f4dde248b5ddacb6. 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/GBSMU4058661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb0e79aa9e30d8588abf365898b770026cd1df6843fbe7e72aaa21631158d214. 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/DEUM72207869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc13e281a40dd8f3cf284b5a148ca1177fcc9297a89e5dc001104907b4f705c96. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEUM72302181.