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 0x26537b97e3b8f3d643fefd44db359400fead4dcf5645ae1ec6caeba890cc8832. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/52ab7352-8032-49a5-a6bf-560c77a32911.json and https://artists.proofprofile.net/proofs/artist/52ab7352-8032-49a5-a6bf-560c77a32911.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 0x63eb15d99f2ae2a62339673270691a894007307be0917548229b9f0e6ce6aeda. 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/USJ3V0626956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf8605ff0a48e690087d948fc3b67eb3b2c4237c0524887e1b9db121180b0b33. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/USJ3V0626958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf75d70f969e2081f549a985975774471c3b37089636b968235586e2ab08ce14c. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T21:08:37Z), 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/USJ3V0626966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bc10e71513bbc3fcdec03cb3bb31e16a292bdd1875fb5ff23f4ec807a7f73e5. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QM6DC1413821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84781f899e9492d97cbd4c4970ba396f64541c1a5db0bb43a9b9ba0b31213eb2. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T01:56:10Z), 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/QM6DC1574992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x336896ebd9fa53cffec6dedc4b47e8c25645016d0007e2c75d5c9cdaf993ce08. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/QM6DC1574968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe17eb351ac5924f0c9ac162c1b3852c9ad3bcf306ae44f19e5eb49ccea55f8b5. Chain 2 (Bitcoin): anchored in block 957699 (2026-07-12T11:51:06Z), 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/QM6DC1574973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4b2bfc1028d18c3ed796491b609ae0ee63c8e5c76b884f2fd7f07ed27080b98. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T08:08:56Z), 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/QM6DC1574976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38247119685ade27a3d6ae7387f77a7251d5fd307985105e2aa1aa87089f9bc5. 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/QM6DC1574978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c7a6fb260cda68f2e69205187da19cf6e5394d631309cfcc25da8fddf8c3943. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T00:35:28Z), 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/QM6DC1574979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5933f2747e437beb55af2c869629f569cda880070b0b3b12ce6236709d0eb8bc. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/QM6DC1574980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1f3562b790db1da936673a716f2bda5fc509ff159d1af4cf174145c39780c07. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QM6DC1574982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04a7ca2064a3cf30e021a0073983b548fbd74b606e3c36307fc3c8a7f7652aba. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QM6DC1610140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa857c81cefbdcb7f463aa08e1d4efd83a6a4e4319832192bf7152ebd1ff8dcee. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QM6DC1610110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2e6e0eb5a7cd1e6cda86e85f7c00599853568690a82fe308abb55b793c9affb. Chain 2 (Bitcoin): anchored in block 958392 (2026-07-17T09:46:31Z), 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/QM6DC1610112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c8ca7bca33f7e2b8ef99dd937df09b70588ef0ccd7fc9224c54bc85becbbd79. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QM6DC1610113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde877766ab6d1df06ebfdba35f6035dbe2884444cbdad224f9debee35971a795. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T14:08:54Z), 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/QM6DC1610114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dfc84ad29451e2f678033399dcc90188ea2ca5155487bd884ac6f4c52255842. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T03:25:52Z), 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/QM6DC1610116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9db18a7fcc342f5f9b4148a2e924a4db51a1e27d769969efed5a9fd04610744. Chain 2 (Bitcoin): anchored in block 958069 (2026-07-14T21:37:55Z), 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/QM6DC1610119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa92d37a2a081f388c33ca60b8c511d9d78cd1d9a51a2d7e72120ab344c16c521. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QM6DC1610123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe728cf56ca89fddc7df7673faeba732931c6abcd30d8cae8d645b74593a7ddde. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/QM6DC1721986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa94295a00bf9c2f8aefeedea1ec04d1246eb797d1cd706b9255311efe991b547. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T21:20:45Z), 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/QM6DC1721988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0d744d498eaceb31ac634a5019ddec338c5f921353fba52935aff749741c959. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T23:08:39Z), 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/QM6DC1721989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34f039fe5c8e6fc1affe11544790b3fba898b281aa13a4fac1d197229e10280d. 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/QM6DC1721991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f151776dc24c2d67426463bb2c0dd052e40e0b57c2401cdc6d961a323141281. 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/QM6DC1721992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b458d4edcaaac9d96b350dc2580c1ac6ec3f36df906b90b20b1267faa8e77a3. 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/QM6DC1721994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x009836ead12ab04780acf6e2b4498899a53640f56c19712afba6ceb7940c160f. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QM6DC1721997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a0913a76ecbf54ac151f4c835dc80543b921827632bea04d3c19c8aaf551b62. 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/QM6DC1721999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9784438e7404c1fccb3dea654ef55e5d4722834113599a569989801f0d3660c4. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/QM6DC1722000.
22 Exitos Originales "La Guacha y Cumbia del Cardenal"