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 0x048565755999fd95ccbaefa2ec53df570099c7f145aa538f7fb19721a035edf3. 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/ae50f42a-1597-43cc-ad7f-5d2feec51418.json and https://artists.proofprofile.net/proofs/artist/ae50f42a-1597-43cc-ad7f-5d2feec51418.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 0x3bfda2bb6c634ed1817fa10768b0006a8992c3ebcaab058e35bda40757403244. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZES72169490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe53ad03d83171d3cdc01e63c2df984024bb752bc1d0b06f736723cb147de043a. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T18:45:15Z), 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/QZK6K2115040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x176beed6a2c467bb033c850bb5ff65215fd969fa97816042435d45c5147dfdcd. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T20:02:13Z), 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/QZK6L2177379.
Rocking da show (Achemuda & Cinco razas)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8683bd2982561e48fd1c62e44079d47d8b1d4223d23faea48540dbf8fc374244. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZES72153352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fc6ba0831c135c0e269312bcefbbb5ca005771a16ebaa4b020de088d0cd2d19. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/QZES72146006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1cc43ad716b25b662925de1f94fdaab8ea12289691bdefabd95beea472b62e8. 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/QZES72152003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc911e8475b1e2417d137728319cfef8824d405b68234bcd8c902cf14fabbb0cf. 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/QZES72152002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8196abe14e704984a445083219ec4115faf5b48a27bf545dc4b02214562350da. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QZES72146002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ab8a14614ed5ad2b441479302afa242da930534be57a1445d718e7ecbb9938e. Chain 2 (Bitcoin): anchored in block 958666 (2026-07-19T05:00:30Z), 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/QZES72154672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7b5e61de5fd3eb4b206b2a9c92b87bd46b23aff7f3865895ff1c3dcdbd4b37a. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T21:07:07Z), 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/QZES72146005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe38393e4642db298edd4a9946ad3ba618e7a3f8091bec59739732f1f7d4db1c. 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/QZES72152023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dfe9a0b8ac81698dc928cae7be73b25ed0a2f0c9a259cfe7c9e256317749d4d. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/QZES72145993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd521742212b473886730ef8522ff7bbc4893d99b6dd6a6e59eaedcadb26bedc. 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/QZES72145986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d222cfc506325fe3a97bf770ab42b25efa40ccd9a48fa9ecef56057aea7ac8d. 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/QZES72145994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a43d24b04df593a59a51f5335e62c0ccd0017c1a9ade1e5d617796a29d63151. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZES72145991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a951c719a5191a1698b3932d7892943c6860589504047e3306e1dcd3d1d941b. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/QZES72145990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd12b48abbcdfca5a1dbd737b91d03b035c9442460148cd991d3f801ff578e23c. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T23:08:03Z), 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/QZK6L2136977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd95445f8fdd4bc848dfde60272243f11e1fd59b8d55f55d069545975881a04c. 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/QZMEM2153372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc10e15ca54714bff5d977f738f4f828d624655910217d51d330d9290da172296. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZNWV2146719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65da6ab561a38f2fe85eef4efed89cbd9baed35cae35fad780dc70d24916d72f. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T17:38:17Z), 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/QZNWY2103039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2389a82bcad8ad5d9096de9ae64aa5edb855f2ba21ae28c449bd2aabdd6a2c26. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/QZPLS2118483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c56ab7bb6dd1880597c9839af1c2b03611e2bb830b89c8ba1a36a2f3a69e77e. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:07:19Z), 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/QZK6L2267856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd42685ddb4202b4a6e25f7b1c483e45a1ecc702c1da2b6ac359028fd6d3a2d0c. 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/QZPLS2230358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71670779fe657f2a08bdadde285eec1e594066787c81645bf01da32113e49684. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/QZFYZ2301842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27ffb8eb50e02bd4be94eae3950b6620a76974c33dfc0fc3913dfab5c97fa52f. Chain 2 (Bitcoin): anchored in block 959034 (2026-07-21T16:34:25Z), 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/QZHNC2341121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2809b807be6770a4221cad09fec4c13aefbd5e3d6face8e4b00e9365edced5bb. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/QZK6N2333376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68b7e71b34b76b2408414dbba934c35e333fafa09a7b6ded0cdd8901e0c98d3c. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T06:58:20Z), 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/QZTAZ2563382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd90ddcc195cb375093938808279d43ec5fdc336587614f0db3b5a8249e693aca. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:40:14Z), 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/QZTBB2523683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ebc7554f101613f0c96e4a7d2a00dc783cd3e9f100d1f9993ba6b67da1ef251. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T21:41:15Z), 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/QZZ7V2575817.