1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x1bd709ac62395e68ee76a0491c504798a74404f22633004e1bac1b55f5910025. 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/6ae43bfc-3ce0-46d4-8e4b-cef7d4112191.json and https://artists.proofprofile.net/proofs/artist/6ae43bfc-3ce0-46d4-8e4b-cef7d4112191.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 → block OTSBitcoinBlock must exist at that height 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 0xd7e2ed171dd884ea10fdfc67a87c472262b2691f7f6c49dcd08abfb82ea390cd. 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/JPTF09907201.
Early Passed Time To Winter - Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1738614889bf653fcb52fb42b19636cab8e29bdaeb7d4fe83e13e12f95ba00a9. 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/JPTF00016411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe20f4f7344c24f3c3e573fb7d66e084399bed81381ce22d0617afb6b7c66d60. 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/JPB600235001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f39087b1d66ffb0d8fdb34a0707a63277a371c8d3f38f767735fe0e628a043b. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/JPTF00106201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8257dab861dca426943f61edca9b82ba253cfd19747deae77151aa35feee05e1. 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/JPB600233606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf5709f31331263bb3b568ed115e4b0df6761aa10c2e94ca2e4460d3f5cd00dd. 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/JPB600228001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f194a854503cc8b55e161d319bfb0f10c7d4726e19f0cef5473df4c9d2c21bd. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/JPB600216301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d5713826786b87ed5f97bceee0a4bd9cad77ec68bf3aa2381341555f1dc96ae. 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/JPB600233607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9d131c5797c6a31d2c1f74bb1979cc9c9b74bdff7d2cb540e60f4f04a989539. 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/JPB600233608.
Baby don't cry - world's end girlfriend remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c605c4129ec8ef7c7e6babcbb22ec64802d6a332b9c0cf534cc573c371591aa. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/JPB600325901.
I will take you - TinyVoice's Acoustic Groove Remix