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 0x1de23fbe17cf254e9efcb244eeac27618202dc985ef5e2a58c718d1e4052d712. 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/7705bcef-8877-4a1e-aa00-533564ccd3ca.json and https://artists.proofprofile.net/proofs/artist/7705bcef-8877-4a1e-aa00-533564ccd3ca.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 0xe7bdc1b4762c3c775ed79414116e7b9c9e94a9c174f0a7f18aa1a3d95951ba3c. 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/QMANG2266622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2908d2e6341a821c623a238cc1ae2bddb714305befb3da28e6626f61823cbfcc. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZDQH2160812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6d860c49f5dba072240dee451fdabd157413cf8fc8f1f2987833c3bad9ef5ec. 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/QZDQH2160813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0d51d6698310397dadbee198c15593731ceae7d1123592045e68e74c8a68a42. 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/QZDQH2160815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59f7b99df6af98f3cd7e697b99d9479f3080cd6b9966cdfb31037b84ec97d61e. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZDQH2142463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bfe85f53f22f0f51a75390e2fb185ed2b6426ecab81714259c1e9827bb49fbb. 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/QZDQH2142450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x500c1939c4ef4cbdfece5dd3888ef1a5bb22aa75cb8134549f0063d2de469987. 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/QZDQH2142451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aa9857bba519d57d83746837c03e7e7397a73703205ee8d96439771a27e9c7c. 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/USA2P2419229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x000a7491da2e1e0c3cd414e6e0def60a8ebef549555cd1856eea0b925eb74a1d. 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/SE5752475831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf825a8af27810c32c21fdb1265565e32ae335f6e5670da520c1b6097d2d8f17. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QM3DF2219622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7256b8300c879d1cdde10c3ba7936685339f29462081ae64c9f99968d5e7180a. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BK4DA2501688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d7c0f117fa211eba03cac25123f86ccd2da19a9445150c94eed805fdae8fe23. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QM6MZ2514771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25d5753e976ba8bf8d45b0fd7d7483ebfba4103996e0ea644dbba1aeeda5359a. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QM4TX2530392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8cf55cee4a8eb91f6b635e9c6af2a52f2a4eb8f96c537f76d53b049d2266469. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QMFMF2427580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x311cfde0c66f1f1737fba89df152140ccdd5d4a6867a4411d93307199cc97250. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QMDA72480084.
Popurri Tropical: Enamorado / Enamorado / Loco / La hierba se movía (En vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96d08a8e22df24045afbd9eaa88f338fee9f32d75c373270238a2cb57d25c3b0. 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/SE6QE2439823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x000a7491da2e1e0c3cd414e6e0def60a8ebef549555cd1856eea0b925eb74a1d. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/SE5752475831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5eb65a175a56b60c31a3e977f7cf9c86e8558dd0f938138a634ca848f17e13d. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QMANG2458114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0299b9f78b7dacc208a8eb4ee2de9fcb15523f3fa973c6d5fd2a0268e9482eb4. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USANG2222083.