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 0xd872814973ef84361536aa061a5e6ce21bbfc9955f7a6fc3e72be836ba06c269. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/83ec413b-1234-4791-b070-5befd88fc964.json and https://artists.proofprofile.net/proofs/artist/83ec413b-1234-4791-b070-5befd88fc964.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 0x47a494430a745934a028b0a252145adfd932baca0f05bd14417fdf14dd11fe95. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZZ7P2497501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09b9ec9fd0764e53bc3b7d13639725a585f9a9bff06937ddbd272c085d66e2f6. 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/QZZ7P2497502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aae8b8ec9b569290090b7ee672b1a9f695966f3f3ee2cf2fb5af5dcdc2a7033. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T18:17:51Z), 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/QZZ7Q2401272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f08b2303bc2641c1d1556697dd241cf94ea109a52e9cf2dbd5e798dcfc203f9. 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/QZFZ42506502.
Children of War (Remixed & Remastered 2025)
Siege of Aleppo - Remixed & Remastered 2025
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9f4f7d5c221c5ead1d5fa05fd0bb0cbb71c03ebfc05b31f9fc4c5bf3c8261ea. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/QZES92535755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f43d26527431cca867cdea77913bdc1721c1b1f55710d3c4530a79f8bb81882. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/QZTAZ2584921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc22ed7b3914bb984a2094ecd8808ad935242eb933ad4b9c5b9c91a210477bcb. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-19T22:59:45Z), 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/QZTAZ2584922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x894dcbd0d0b609f69c5911e250e3c174f67d354f49d226fdf4c3b411d2f6f7a9. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T04:29:18Z), 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/QZTAZ2584923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0d836a84a7c0dcfec5c09468b9e86718a7d414c9ba1e9deac0326869f68cffc. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T06:50:07Z), 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/QZTAZ2584927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b332a605f931a9d1f1c91be0eff1277f978bdb6f5f618d1b09718a021fe677a. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T19:14:02Z), 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/QZTAZ2584928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x076b11dc5e6eda93bb91bc7b57e8ac6567b54197d1490986fb35295c70eefec8. 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/QZTB22546854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x227e3b3ae77dc5d84050e3cb58e3f52112a4f3902bb29e3431afbf9005423908. 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/QZTB22546855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b0da35c4cba44556400a7c065a48f7a1ba10f9dd4f81bfb4ecfd54da6af64d6. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/QZTB22546856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f14e61410eef98143848fed359448da7d98503299f5c370b30bbd9b39a18e61. 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/QZTB22546857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeffce9c33088aec700f27575e2b0c894187cb096ceb1d88703b3e96d22122025. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZTB22546858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x692f09af2756f26d91c7a4c7f612170947473eac6c0a072d000174f277c8035d. 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/QZTB22546859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc75e29f06a1652d181e2a7dda4ac57378daf89fe52c1bf6f3e8b5e92b43b0bd7. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZTB22546860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9eddd8c4158892cc06e5dac75e56cd46218a8d8f603c92eb63ca9aaf3a916bca. 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/QZWFL2563731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf30340d6e08b97b68cd5cd37b8924708d2469917c43bd200f17a124e0cfee61e. 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/QZWFL2565224.