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 0xa3e9d9c1f60d8f1c774a9f730454a231d68c3d0cbda2c219cb6b9405b44c3c58. Chain 2 (Bitcoin): anchored in block 953699 (2026-06-14T22:00:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6fb6e264-eb7a-443f-80cc-6dc9090eeafb.json and https://artists.proofprofile.net/proofs/artist/6fb6e264-eb7a-443f-80cc-6dc9090eeafb.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 0x76f9a8517ae7aa43dce8a41fd016b808b0edc7e75d05fab46997471d53075b70. 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/QZTAU2415230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcae7f238b35f8907d767022546940459aecac569e6dff2a387a2e8a1bfe54b42. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T02:31:22Z), 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/QZTAU2415231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed57e7d58f454aca8a1a8982ddf2589251bde3a26fa60b0a12247a7a9b1633d5. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/QZTAU2415232.
GRABACIONES TOTALMENTE EN VIVO (En vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a8c75d408bd27d3447baba62c5bd55a59113f18cf5a6ae6b173365445b73abe. 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/QZTAU2428413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f783f682911d7f3eb648c3891315a691a205432bfaf310a9e3e4cb17ffbcbae. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/QZTAU2428414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9822a67da8f4cfc9f3c3817249c8ef331530159af6661e12f308e97b2fd54b9e. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/QZTAU2428415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b2708cb1b95eddb4add9781632c35fe5a3b24c30307428093430666214fcf2f. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T12:43:44Z), 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/QZTAU2428416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb77f51051498d0de07b69577217c644fc189779b2c2aa58284bf0afe7f7c84c5. 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/QZTAU2428417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5387b47ff881e19659a205db8748b2586afa3312a8e4e6eca518fbb86d23b43. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QZTAX2482431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a19df01d93dc246d35754135b01ed9ea37cb411ccc71d22ec1aad3563cb86db. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:44:00Z), 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/QZTAX2482432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x539054929ab9e112d67880e46fa53fcd1a090743a21a5418fdfec61452ebb1b2. 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/QZTAX2482433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc53aa005dd6e97cba4148330a26596c2370e0b4fa9adf50fae90189b71dcbef6. 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/QZTAX2482434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2726a6131741ce5bd7cc4c2e802c1154d82cd090bc6d1899cca46b4c101c28a. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/QZTAX2482435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78829b8c8b356e77b8d7e656d6e5700c22f03266a4c2fe40b54623e9422b4125. Chain 2 (Bitcoin): anchored in block 958830 (2026-07-20T08:04:27Z), 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/QZWFP2455115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37b6fda2f9a40ccd2a399ac07ab2bb4e0f66bfd7d5f3f272ba6964bd7b7b3660. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/QZZ7S2417847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a0f24ba6839c1f9b0a9d7bf5e056260aae4cc0c45dc4b0d8fc432f3f8679615. 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/QZES82561824.