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 0x87c9036489934fa97f2c341ac0640a837edd286658d2a3098d205126f5ba99dc. 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/924a54fa-e67d-4c64-a996-7f3574c2c238.json and https://artists.proofprofile.net/proofs/artist/924a54fa-e67d-4c64-a996-7f3574c2c238.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 0x2136f1df984acc071e775f6b9e97c9cddcef339e1dc3c9c02e3d3f1dec9b3028. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:20:03Z), 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/IT0BG1400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ce69b595de4d06262c1aa0b1ed87fb526761b22a77cb00832876fba9de90f2c. 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/IT0BG1300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42cc513662d337693ba30df29b97389a0f39133b87e4e5afd1b75644bc00db98. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/IT0BG1500011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x057ae5a347b5977cbd2f525fdb690933498567ac0b1c7c72124bc163af36bd3a. 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/IT0BG1500014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f5404948debad04adc944091062ffabd1602fb94e578294740aab4d7989859f. Chain 2 (Bitcoin): anchored in block 958558 (2026-07-18T13:44:16Z), 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/IT0BG1500016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f5c6bab84fa8266db4c99d7cdd6b50d9aa3112a653fb6cb1eadd35ddb70e994. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:18:20Z), 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/IT0BG1500017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc720aed20ba84324eb327b8c673139e7c0022cfffe084c3f61e5b7b8e908db95. 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/IT0BG1500019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe99dfc1e7cfc7baa8252f135b9ba60a542981f00f3c6dbe7cf317cb311f1763c. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/IT0BG1500021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea3fa0afd688c150a3dd6225b3c0bd1c8607205364c028a2e9f61b9ac3291be0. 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/IT0BG1500031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41d22361fd2325e1207ef3642235100fbde6c918db626053f300d41cbb0b3046. 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/IT0BG1600002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x719aa8deaa6ec7b48b57422fbea1b6bc5a0f7b64bfaab8f276d708c138df9544. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T15:39:05Z), 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/IT0BG1800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd94d8da68678e17895b57b16e04ba30af03583fb648a39bd8decc59944a67495. 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/IT0BG1800002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8166143c16731744898f9c00a0553560d0e43472ab386139026763d49bca2ccf. Chain 2 (Bitcoin): anchored in block 957653 (2026-07-12T04:35:02Z), 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/IT0BG1800006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9919be417e77e12ccaa4f0365c05f5411eeab211bcee4d9dc1faf38e99c5255e. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/IT0BG1800005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5fac38b91bfeb7731ebdbca9bd7cb07d8931d41711eea922f9029c026486dda. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:32:47Z), 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/IT0BG1800009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5e21f80a5c0d34a956e5e7d6119c265da8d38e21c07e75e46c5ab4913c85845. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/IT0BG1800010.
Anche quest'estate si tromba dalla prossima
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ec3661754e486fa6ccf520bc57509bc83d0cce53fa368a4ee5d8d5ce8633561. Chain 2 (Bitcoin): anchored in block 957650 (2026-07-12T04:18:57Z), 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/IT0BG2000010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf295baad4206fdfc0ae4a112aedd148371026c8344bc35b9a5cc321b1022f9f9. 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/IT0BG2000020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0b2dc87bacd7c86038831f0f1f2d259118810f76f596eed78357e47af0ae979. 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/IT0BG2300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c6a037fe74c315787650c0887e9351aad929f732479683ea55207a66a4489cd. 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/IT0BG2300053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf68659a57c6b0ffaff6d065540f2e24e98ffdd5eb62aaf44ce3e327a0f2ef9c9. 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/IT0BG2300060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89122a41beb8f70cedb6ad6d0ea25fdcfc626e9d2b8ad5ff844aab7b9998d2f9. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-02T21:02:00Z), 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/ITDDT2400026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb12064bd4ba52d4b6a523ddaf7c64c9f266ccd3f97b4a030dd5fcd324477625b. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ITWX41900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde59b730d74c51aa2a5c16b4e7208cfdd99b0097881b3e937fd4966692c8d8a5. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/ITWX42000117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb12064bd4ba52d4b6a523ddaf7c64c9f266ccd3f97b4a030dd5fcd324477625b. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/ITWX41900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6576e6518a80ec5708714b9e5aaaa60821e3f6f91df409625978d9c55f2c3c7. 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/ITK192300254.