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 0x0920498d3903f57b336c52f7d30d67c6a8c899a96aff272b6eb42a54c4e9c8a0. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/745cb5d0-6f32-4bf9-b874-c47caa4e7863.json and https://artists.proofprofile.net/proofs/artist/745cb5d0-6f32-4bf9-b874-c47caa4e7863.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 0x8c81f0924239b840ee0fad02f31a7133941e9cf1d6a12e12bbea914e442a9035. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T16:16:18Z), 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/TCADB1711850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41504e7cadc1741a0b1f4ad13bbc5c250f4d996a275321ddfd3747115cb15530. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QZFZ41973812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac6bfd06998ef821f88a89d761a50262395263bb1956eb3e15d75eb74dbce251. 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/FRX282033030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce8ac9f06f9d6cd96570a9d0e803b504b2fd94a94384f41a4aecdcbdbc38bdf3. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:36:21Z), 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/FRX282033031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaae566def82b6a12ad7e6ce14a69c199f28cbdd2c29f19b6e2458fa5343359b4. 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/QZFYX2041812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa286cb4cf947a2b165146ecc95b8aed569ae3e5b9b203449ba63bd21d24c238e. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/FRX872366031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x938bf87292a42872ef6b8ed881e32b94d04183e52a1b4f0364b58d44ce8015c9. 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/DGA052339546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffdcecf4b06e2024c231c2c0275f303de83432c6a7e30ce07f4ee0441839c376. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DGA0H2349855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xade3cf85c23bc40fca645f8880f1aa2752d97d4dbe6349136164b88f9d828fce. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/DGA0Q2349708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1cdd7e4ea249fda885a9f55753ab0c743ee95e4d8ea7e03cdcf6530ad34b63b. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DGA082376753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31fb15e645850f0d6645e763a38c4be0ff650154f47d038d6c86e67d8e82413a. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DGA0Q2349710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f890952f671c7abc192bb1d445778cb70a00c47dfb73abc3a40e48293e33c62. 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/DGA0Q2349711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b56a8a987db70060f873ce9f1d3666fd2d68014f5fc789d5a79ff0ea837ca25. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/DGA0Q2349712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa286cb4cf947a2b165146ecc95b8aed569ae3e5b9b203449ba63bd21d24c238e. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FRX872366031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd925621ce443c6fb2cab4bb962d82b8fe2a05d5f2129480be9fd6a4db2a1e0f3. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DGA0Q2349713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6eef373f87949647274f5efa92ed4234d8f607d795e9774cdd0c1d3f0dd1b77f. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DGA0Q2349714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffdcecf4b06e2024c231c2c0275f303de83432c6a7e30ce07f4ee0441839c376. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/DGA0H2349855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd984b96a07f19b1b8e402bfe0476b2bf88e5dea2561f837d472e263cbf5b434a. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DGA0Q2349715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x461b2165e58bdfbe1b560e948b104e52e3b740fadbafb317c2c42c6cb34b845f. 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/DGA052488827.
Stazione Centrale (feat. Guesan & Ill Rave) - prod. Don Joe
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd53c54f3b60993b7c29a862576090e3909d673879107dc0cfb77898dfb05d4b. 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/ITB001900344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ea4244e02b9f396f4dac2fdeefcfc2cd6f4b7c1a9c667e12fcf1c1121a9c662. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ES71G2409377.