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 0xdbb1f9ef4a1a010b443e0a77e11803c12de9a34f0e723286e47bc6219085ed4c. 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/1f9b0b1d-9219-4175-bbae-1c1609370503.json and https://artists.proofprofile.net/proofs/artist/1f9b0b1d-9219-4175-bbae-1c1609370503.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 0x812755e5beae22666e83f49a1c1a13960022ce51bddbaf1fefbf58613f79c573. 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/GB5KW2000420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd674407599986a69f486dd3a116ccba18accca762c0f57d15b56ee6cdf2805c. 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/GB5KW2000466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43ee36c35822f6e9d8c2a6c5b18278c40fcaf2509fcb3384ea7d288e76ed9d18. 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/GB5KW2000422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcad5761458a0388b25d6ec70fcafce66b48080630d762e724140f5d75d0fe9cc. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GB5KW2000430.
Incarnate - InsideInfo & Ant Miles Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf807505fe15676184b961bb6bcfbc25bb51fa4c91c197511db7d9c02320f7a4. 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/GB5KW2000425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24384e8d69e144be06ed58f8953ba9ffe9aa51ed9f9e1253597737ee0c4452b5. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GB5KW2000428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacb59bcd20e490116b4b24ad6363cef21dd2e514c072058bdfac23a6ac513389. Chain 2 (Bitcoin): anchored in block 960276 (2026-07-30T16:01:17Z), 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/GB5KW2000429.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x947b04d36ea1a0ed23922025ad4bc31e13f0fe90bf4e0c74d553519ea848c1f0. Chain 2 (Bitcoin): anchored in block 960173 (2026-07-30T00:11:40Z), 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/GB5KW2000421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadaa16b76ba9b08bf84ddd00d3a620c162d9419bf9a7756539e4b64c4d6e8a94. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/GB5KW2000467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19203b40e1cf2986f416134f039f5d23f1024472dd12aa83f75001bdd758f3fd. Chain 2 (Bitcoin): anchored in block 960241 (2026-07-30T09:58:01Z), 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/GB5KW2000423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe92f121e01f2f7876ce22d05b8085cf6f035b3da194c5d723cb2a8289e043a20. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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/GB5KW2000424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf9975ae89c6c19cf52b21a7df9f16f5b024b4b447cb76820b24f84ca382427d. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/GB5KW2000426.
Flip the Traps - Ant Miles & Boneshaker Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3f48e82ed3ae2d3207e8ed97f2a656201c71d4bae4f0cf269117d990f426161. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/GB5KW2000427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e76ec59ce7f97b07f3bbbcbe24e2cfca86727ecac430000b667df29c3038df7. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GBBZH0204002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3046dc30cbc82a024b039ee8282d097c66f9f8b10f173de5af61a92fb85d0827. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GB5KW1703883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8081638382a6b5e29dd3a250b179a1936a389be509a41655413c48b74ffb96b2. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GB5KW1703875.
Evolution - Marcus Intalex & ST Files Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc988a8e52b0d257197af6f2ef2bafc7dd09534d8f3e975a0444940f0321943fd. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBBZH0190418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9296208b8cee3d4b86ccbd5a6683f96cfcaa1d92f44bba19c1fec5d16fb8b22. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/GB5KW1703874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3a37f36998e4ffde6a08ecd7636fde85f431120bb51bb8e19749ffab67df8b3. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/GB5KW1703886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0e04e1897120fd349af51689862b12a7d09426b08bf4e37ee528d9112a0f05c. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/GBBZH0002801.