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 0xa410ed8b457c49c66d9916e0e6fb23b5cd84a464e918e10c7dbd02461a03d9ce. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c34fea8b-e316-475e-979e-b494b1a99ca8.json and https://artists.proofprofile.net/proofs/artist/c34fea8b-e316-475e-979e-b494b1a99ca8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Baby Genius: Mozart Lullabies for Early Brain Growth
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 0xf10e6ae28750cb3a0c584925d91f3d183cac5d38319af1087335fcc84f834f6a. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T12:49:10Z), 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/QZWFM2495128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a94b4d41942cc868de07d79299ee28687496a661e5fe998181845ede10c6e6f. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/QZWFM2495129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa96a1217ab97f16e9a200ae0b8ba6209014d324d6332569ee83cda831b6e8a29. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T12:41:16Z), 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/QZZ762419626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e5ecc20c550f8f7962788e1dbe47fdfaa49425a39bcc13c3e75ae8c576abedf. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZZ762419628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x971c9146223dbae15c53ede93d99399722e33afb5da6af7da4456140083d8c27. Chain 2 (Bitcoin): anchored in block 956405 (2026-07-17T04:32:43Z), 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/QZZ762419629.
Baby Mozart: Soothing Lullabies for Brain Growth
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4b916ed3b9a98870fc503da8f3f32f67af2f7c7b9fba74a01e4412ec5c3f059. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:20:23Z), 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/QZZ7X2474864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0223bff67ebd117f55255728bd7dfe532b0d98f15b1759131968959b7b3536df. 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/QZZ7X2474865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ec3c3ed77a671ac66367fc595c98524c778449a88e9e814fdd5c257cb306229. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/QZZ7X2474866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x753d61ea29bc44dc28cc085004b6155b3849ebdb2fd8229dfb3c06a7442335a6. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZZ7X2474867.
Baby Mozart: Lullabies Brain Development
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0dbc9fc9010697b46c663560db480a3d0b455613d8ec6238302a313c640a1d9. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/QZHN42541747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48b7aa1a3b504211172f854b6aa79d7dd7bf19ecf35923590b76b982dc125343. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QZHN42541754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ba6af05ff1765c4ee4ad5c50f1a297bf148fa6c6d00c9125e89ddb8adfdd212. 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/QZHN42541755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f8e1ed53fc5c4906acc3d5c767f2d8bf25add2285271be756ed31bfc59cde61. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/QZHN42541757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x194194c84f92c4a36e843747f0fee5759245b09129e64bf7afec569335b3b83d. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T10:07:01Z), 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/QZPLR2540642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92012fb3bf57c3a43d8af0dc4c07bddcab9a4ffcaee63721aacbbff3d6fb01cb. 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/QZPLR2540643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f0a96cba7e458ac38daea32e5ac3dfbf12effd8e5fd347c9a9ef23ea5c79fee. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZPLR2540644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6746d5e24adc0b7d94da77c7da8dec92ca08ab5a97b97ac4d62944c8993fec91. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:59:00Z), 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/QZPLR2540645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3051b76edb256d6d685954ee5b21d450d7aed5dec1dbf0e7277929d5451a4071. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/QZPLR2540646.
Contredance for Orchestra in E flat major Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d87196cd42b990b6a9bf58cb28f7b78441d7b3f02cd31d8bfd51de3e0b2bb78. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T06:49:11Z), 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/QZPLR2540649.
Contredance for Orchestra in E flat major Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09a611204cda92f48cd243eee1ecbe3914a7b04aee1966788d37edc310aea44a. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/QZPLR2540650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe003dd61f56875559be4f05a76f332dcdad7079b8676ea489ae01e2d9c26ca0f. 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/QZZ772547251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a3086fb99b00490d6441a859be59d8e2927bb078687f93320825c2a92efa536. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/QZZ7S2594480.
Symphony No. 40 in G Minor, Molto Allegro