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 0x6fdbff0a46f7e1470cdb081124205fe9fd8fb24d4301780fc53c311e8556e5db. 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/03d7a925-9cf3-4e87-a9b3-71f475f2dd61.json and https://artists.proofprofile.net/proofs/artist/03d7a925-9cf3-4e87-a9b3-71f475f2dd61.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 0x37f22c570133f8f1d4beaaac8a726ca557c55514e2f09572443bebb24bd42342. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/DGA072340357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30494c3973e1db0c2d3c47067f88c20bc9d8e00814fe0f45a064d71cddeb54ee. Chain 2 (Bitcoin): anchored in block 957830 (2026-07-13T09:15:55Z), 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/QM4TW2476325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5a765e5f6ab998e4f78fd2950d675d48b7126fd5d69676d4f21ee7adc35810b. 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/INT4L2400020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94c604b5d76b927b0345af75db6eb4ff6ca9aec13c5b28b339fb955c26273eb4. 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/INS7A2625783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac6b3c3c65a50dc24adab19793703bbe61604777f764a5ca440dffc4bcbf638a. 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/INS7A2647218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9860cab4c0162d9a185538bc441c8e57f3cc80d8324d33743542b4556585e4b. 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/INSU32402823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ceb8de07b205a3ff9323c7a4623825c4b2cbd5150cfd9662afb301b523a86f5. 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/INSU32402883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4af4c382613c3ee8566d309bfca71e80ec3c3adf5dc1d7ac8a84fed151633566. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/INSU32404114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f46a17eaec678a3b863abf9806c43322e8ecbfa339fe8d74c867d4f6029897f. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/INT4P2302373.
Ley Le 500 Bangalin Ge Dahi Toy Chauki Tod
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43856291604461c398ae6e51686823982837f7443f031390bb50bcbd0ace6b6d. 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/INSU32403281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfac896ac5df26422789b370c065b26e7c9e85f90f988792eac844ea622d3f26d. 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/INA8D2411339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd57499e9ba9e591760bd549511658099a15ea1355120601bf404de7323dd3a07. 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/INSU32403248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c8c0053a19030f8e96f0facb6a95e7cd89a5c5f19540a12968a5aa10a77737a. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/INSU32403253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6accb5a25057b239ee282ca26c62471e2c431fabf630d2add5bf88d9c041006c. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/NGB5S2301436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed0b3c9f514dce4e518896e639d7cd5f5d802775ae5081de6fa759243cd8ea24. 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/ING212493235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x485086d9e0884b8319b9393dbce72cb394df26613b55e4288147da97c90eac85. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/INT4P2302623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2388969d9c520b56b321a07beee0c155befb06a277c150045cf69c2ed669036a. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:05:50Z), 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/QMBZ92459169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x354d1bbbb36f15e1afe625b8c153264d9bebc3b33050872a50254e80ad1194b6. 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/NGB5S2302796.