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 0x62461954eb177089882ac4b9dd0844c153586d6688b9fd735375cb6fe36767af. 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/cd776f49-8c09-462a-9b96-80a01a058c61.json and https://artists.proofprofile.net/proofs/artist/cd776f49-8c09-462a-9b96-80a01a058c61.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 0xc5c0d48a920c637c413727416472d7b0f52d690d3cc6937aff7281468d9ee181. Chain 2 (Bitcoin): anchored in block 957576 (2026-07-11T14:19:48Z), 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/FRX871586757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63058d7e02591f6615ffb6a976dbd36a939a578a14fb75f86885e5d7151f99fe. 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/FRX871586764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d42d77b14fcdc42e6f767b3592b198370140892f5a3bad63296a1ef2dd47f66. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/FRX871586768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38b6e0b42e5f30ef264d76554b585cb52095baf20c97cff6a8d6988e22825544. 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/FRX871586769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8e154b679cff402c24364176a255a734cc9fb63c95e1c5c5334e059040a761d. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/FRX871586772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2916d7680f2a0ab6bca1caad39c8800548829411bdc03f5b562fe3a590f4dc09. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/FRX871586773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22926c6bd3ff4d4e26b02828e1767426d0809979429998a49f7363d649a4b9e5. 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/FRX871585180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a2f255a824c4ba4f414b348d166fbe807367b6908aa5b6f2175b74483eedfba. Chain 2 (Bitcoin): anchored in block 958054 (2026-07-14T19:33:24Z), 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/FRX871595365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2248cf12fdfc1fe809b3f3509830c169b4759c19b9f3dcbe39e54015b2f78502. 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/FRX871595366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaeb62940f2da5024c367de9a1caa52e10f32dd6b22f04847758951d12a486d22. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/FRX871595372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3647aacc025f2838f8456e86c317d346674d62b1fa4c20c833bebc5ffcd21ec. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/FRX871595376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6438fae98c9a122315c77202d72343882a074dca5062cca1f5e804e5feba3cc. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/FRX871595382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86448c207974928020c5e253139319f34c2862a0805fb1a550df0b24a8212512. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), 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/FRX871595412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25b273005c701f68572ad3d8717a2b49db8cfbcb76fd5ac1595cc540da0a4398. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/FRX871595415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2060fd8edc93bd46904891a0187a87ed324a32453f1b11cfd1b50ea9630b514. Chain 2 (Bitcoin): anchored in block 959088 (2026-07-22T04:51:30Z), 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/FRX871595417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0970bb5a06dcb359a80ddb98e32cbdee3c10e71cee32a527959557cca023da32. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/FRX871595503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaccad7d06ae218279486354f1b649726bc93f1b6320c2f49e2395a51355b6a0d. Chain 2 (Bitcoin): anchored in block 957965 (2026-07-14T07:07:52Z), 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/FRX871595505.
Instrumentales de Colección: Fiesta Caribe
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ff4e8e0c46841e66d87822797fb2e1e6dae186393f3479b5ec6268ebfa1715a. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/FRX871540534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc774dea8e63637c3fe81fda85226b4326c0334182bca9af464c847d043686bd5. Chain 2 (Bitcoin): anchored in block 957573 (2026-07-11T13:43:13Z), 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/FRX871540542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6199b1f137d808dc1a8ba132245a1db5f52dd74046b72444a5f7cad2d5a795d. Chain 2 (Bitcoin): anchored in block 957576 (2026-07-11T14:19:48Z), 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/FRX871595521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8c1e7be541f8253edaedf7118afb58db3451693c4767e7670de864fc5320261. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/FRX871595468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3944995d9f9b04b72318def2a848de419c453a12fa9f763a6d41d9a26ca597f8. Chain 2 (Bitcoin): anchored in block 958903 (2026-07-20T18:09:34Z), 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/FRX871595473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x342b866ae759ffd699f209d6709d07f5f1d88775057be489ade757d956908b86. 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/FRX871595477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1066d90f6a3b76b896bc4e0fd5660a4f0f2b04a41d9f93d765fef8f4a0aabe2. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T08:48:32Z), 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/FR96X1752407.