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 0xa3ca72aa8144f6e8ef69f0bfedc228bd56e8c16fb62a0a19c99c61cfd499d680. 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/03d76f95-397a-44f1-a674-f847a0ae52f0.json and https://artists.proofprofile.net/proofs/artist/03d76f95-397a-44f1-a674-f847a0ae52f0.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 0xece258604c93dd0003bf732837652e574aaf3b0dc55c793eea00f9cff96dc73b. Chain 2 (Bitcoin): anchored in block 958703 (2026-07-19T08:36:12Z), 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/USA370514150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f5c906c054a7f4fbde4c885cf6bd5ddf42663faa976b67eeb62ad10ce7020d1. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T19:47:13Z), 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/USA370514152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88d973826fec0152875aa96883b72900bfbf931e070452711aa4802263932172. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USA370514153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5064dcf902f2904a74cebcc9de41196ae7992d4df9437eb6ef87141cd37c7351. 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/ITJ030300011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc193009b0cc204acb90df143f453108b18125da5abd8c9d22247a5c1300d7523. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/ITA981204196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b0cdcacfdd7b3136739f66b694006057a4b5481a5ce45de9a82606f950b7d98. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/ITS041300758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ed2d45b3ba7e78787387d07066b21787d60fa0bdc70cce2cda978580778630d. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/FR2X41562026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d6c3329429c631446e771a1b16b13ca5b939592b20c2ad3babb268c1453f61b. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/FR2X41562029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e44de8c696629c282b15e5ae9ee1092b8aef75402fb98c5d0d33aa46fd112f5. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/FR2X41562032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d67e722c21f663b7e9c9264003e0f7380470d69429af170b7f4a1292c82d2ca. 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/ITH471701601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9f1d294252262a6632136ec01934b40401310bcff4f2eb2fa117fc84ed76c38. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/ITH471709209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9241e13027dcef7f3d0467920fa534ca06180a31721bd1d54aaa401919be6a6. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/ITH471709211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9318cef9114c891c8131370429715ea3834384ae4f0d27b9e0d6fc8ce2c8f00e. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/ITH471811401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6805b0df8fc7f06cc91fc40c8cf34ab3640e80b1966643deabf56a70b16c754. 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/IT8TZ1981401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc681d42f5fb7a84bc0dfa366082be9ecef3df364d168e99f55f3d0f430a23e45. Chain 2 (Bitcoin): anchored in block 958104 (2026-07-15T05:34:05Z), 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/ITH471902302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe706c6d31641aef7d2ca9be1471af8fa2e0fd00614789953e4de407dafe2aecb. Chain 2 (Bitcoin): anchored in block 956713 (2026-07-04T23:03:25Z), 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/ITH471902419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa88e0dd2845b924ee0749c93b230dbdd49a73d31f497587f138bb317dc30f90e. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/IT8TZ1981601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b8a29331e54b971fcaec555712e2b336dceb4348ef6ad4431f4695f8004e831. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/IT8TZ1981903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7aa7fd773f6f1970b6322ce145cb4877fc0cce2fb7060ebdfcdef1bade98ed32. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T04:28:31Z), 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/IY8TZ1981905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84e52827df61359bec7fa9924a26d3203cc23f403136b7d5b212eb3ec3fc79f4. 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/IT8TZ1981906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae01b8acdddc801e22b35ef498e146e7b763e32d5d8c43d333614d626623ed0f. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/IT8TZ1981910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x250a4a51e81eea90fe1bea043588278a9ef6cd3ce20cb0d1cbc23dfdb97496d6. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/ITH472103603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b26fc1a6432a4145feef98467d162480f3e94c585e17b10fd8c9c00132b049b. 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/ITH472103604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7378cc774f41f3239da68582aa2c88394ea9bbf8afad5796b049e0ca08e034a9. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/ITH472103608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x634edcb31f66c295f0d9c92dd40cf71f68512573fd738602b49a07250a600bf6. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:44:11Z), 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/ITH472103611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbd8f74cbf71b8d281870ca610efd277e2fdec28fdf1599c2e05f949557ebad1. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/ITH472202101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95aad4eecf0120425ca052d07115fa15d910adceb5ff2ba7641054a23e6eb56a. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T16:08:05Z), 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/ITH472407101.
Gianni Fiorellino - Stadio Maradona / Tutto in una notte
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea1212285a6eebb07d5ca47b0277565d6af9ee048810788e8181ba786c5f683d. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/QMFME2524168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce1b1b9a23d3dc41fd2fcb14311537bd8233c42fa3046ddd7f49c12b7587f8c2. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FR6V82456130.