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 0xc8afa41c571117450710bbe4951c76badf2a32a4b5cde2b112c1dd6e482e5896. 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/55a03f17-30cc-49b3-a5f5-4679b2bb08fa.json and https://artists.proofprofile.net/proofs/artist/55a03f17-30cc-49b3-a5f5-4679b2bb08fa.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 0xa934cc9cb16c8ed196c60262aeac32c9d66916a5757ccd380cb7c7407990ac9b. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:51:38Z), 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/USLZJ1569472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3286bb28c8b98d7ef3ecbac6a7cc16cf0a0f89b0e6dd671f50a1682070b62b2f. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T15:07:00Z), 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/QM24S1702099.
Follow Your Heart (feat. Cadence Ludden) [Remixes]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96bab55da4bd56f5e4574ea42e2951c8b1b36de96da6ce1a1ecbc1467bf7a633. 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/QM24S1702122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22aa411e8485e76d6a84bb95932ee5408fb1c45971738a43ca4bd54aa4d10b1b. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:40:27Z), 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/NLZ541800148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf11acfe5d9b2c1710b0f3c3da7b77f0bb84816bef0925bb22e425e41bb58474d. 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/NLRD51908212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x699e196ac0a3f848d0bb0b70e98574609e773aaf83339e166ff7303f69aaf634. 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/GBSMU6964815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd80459c381d23b6f2f323e0fc18d4f21c488ae4414c3036fddc540a1053b4685. 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/GBKQU2089141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd73fcc4c81559485406fb7f8c7174d8338a05395a901cde941652865b2453c23. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/CA5KR2096879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ea8e172ab71df4a408d1b5446953257bded0ef4681f34d38e6e91f68f8fe0af. 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/USA2P2115715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd49ef5915dfd8315f7ce487bf07305f868399f10d3eedb5442ffed51dfb76133. 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/USA2P2142863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63d5b0c5e0607208c2f68d20d5322fb3a0904c017d0035855e84b2a71a958f41. 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/NL5WB2200077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56ad271e657d79ccacb20abc4fad04d2d9c96dbb379517a914fca48a2bf142be. 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/NL5WB2200109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56ad271e657d79ccacb20abc4fad04d2d9c96dbb379517a914fca48a2bf142be. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/NL5WB2200109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9893416e396594efa32febbd1b9a2088c95bcb32458d7d99b3a37004f82670c. 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/NL5WB2300063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33435aa33a37027cc84f508691514582e7d5f3f94180762c5520ea09f95f6b89. 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/NL9KQ2300050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x538616eaa1897815a7e1ef3f40002d734ee8040ae8f99f169c789be01a7b12bb. Chain 2 (Bitcoin): anchored in block 958816 (2026-07-20T03:51:05Z), 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/QZMEN2363602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2b1125cecd76011e02a382e184fa91b232ae1e3795d73c9bbb86d45eb54e2ce. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T17:46:45Z), 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/QT3EY2456958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63fcb3cd306c4ffecc11ff1f9ab93724d045b0b61f74e6f9dd0adb1c155b9146. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/QZK6M2523579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d69fe3b70ad3d475880b62e0db4bfcaa7491d33b37f60a71116fa2212344ac5. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USA2P2210548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a0474c20ac7691b52df90c8398e48762edfcc7de629ec5d20b764dc55a7cdd3. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/TCAFA2010230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e9996038bcc3b84844cb35e8ea5ed1ae98977dc237f459f94e868a7c860758c. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZP6S2000019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47425060fa70788ffd4637368255cd725007e95c67d797946933301c8cd1ef8b. 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/NL2BP1900006.