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 0x6e11f2b1c05b484c5a61d350f5422f56a35c01252bfd997757c0e7f9a2a3c6a3. Chain 2 (Bitcoin): anchored in block 953842 (2026-06-15T22:22:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e41cdb57-0f21-432c-983e-59bd25a32b17.json and https://artists.proofprofile.net/proofs/artist/e41cdb57-0f21-432c-983e-59bd25a32b17.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Authentic East Asian Music for Zen Meditation (Kung Fu, Tai-Chi)
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 0x11d3c82488383f54e5f309517b18cc074b94dcdfc77fac59c77e3d0240e0f189. 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/TWC019303740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa629becdb1b680e04514abd3901ac60d5872550e844a3ebea68226fbae9117cc. 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/TWC019401250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b8645b3d7924d9fdc4fe9e6e3e599376c1d34e0f9e06575a4ac5e7cce20ecac. 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/TWC019402330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9ca009c5e82428e5678ea5bf34f651aed0aca2845ee18d66185f6283ea6647c. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/TWC019501530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2e88547cf66108cd213c5435821004a3f7c7cd8c21c17a7b274897722c1e2c8. 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/TWC019901020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ae0bd85828dae46556411e01c89626096e65b8e9cc333866c36ee78793dcc1f. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/TWC019501560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e7e4b26a51d74b3349ca6dcee99b2c87422b09f29f1be9447f2ed77f2b692b4. 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/TWC010201430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c63d310df3f156374358385603ed4ca0fcbdd1263e628dd9e0d848460ef477a. 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/TWC010800871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53fe76b4d3bb6dc547c9996f17b8225bd245fd8c8c217c89a74adf6b103132d0. 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/TWC019501500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b8e9fd04ac1c4e17e00f93cd25af2b53e52c82079942da59f3e262e8fbba480. 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/TWC019501510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07d6729390f548af94a5bf5a41be980995fb9a5b7d36e0d0824908b14de342d4. 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/TWC019501480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75d9a9974cad9fe0f02713662271e365b2944ce765c76f836f68942143a2e35d. 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/TWC010101210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c5c41339786a0858c30b312c1991922ca6bcad17ec264f4b986c758a34a1d2b. 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/TWC019901010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07d6729390f548af94a5bf5a41be980995fb9a5b7d36e0d0824908b14de342d4. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/TWC019501480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x754fa1e2d588d9a3c93fa8f40ac51313fbb5fa1b5dde4b5ce9808387d9becd37. 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/TWC019501490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53fe76b4d3bb6dc547c9996f17b8225bd245fd8c8c217c89a74adf6b103132d0. 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/TWC019501500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b8e9fd04ac1c4e17e00f93cd25af2b53e52c82079942da59f3e262e8fbba480. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/TWC019501510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ec5a7e2f5360bd37b5e805256550f26d6244992d39ede9c2aadd049001f0f8b. 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/TWC019501520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa466e5eff784494827729b1bbd38180c7b4cf50d3ae7b74da8d3ffff2871ca20. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/TWC019501470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9ca009c5e82428e5678ea5bf34f651aed0aca2845ee18d66185f6283ea6647c. 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/TWC019501530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x066ee48a4f9ea06a9b2597e6da29455c240e44fad9980473eee31f9c55fb4b2e. 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/TWC019501550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ae0bd85828dae46556411e01c89626096e65b8e9cc333866c36ee78793dcc1f. 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/TWC019501560.