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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71f365eb869aa55e66f12229dc49e1d58b944c21ed0a08bace9b52119f22fb89. Chain 2 (Bitcoin): anchored in block 953717 (2026-06-15T01:05:33Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/86e001d3-5c1a-40b4-96d4-761b10959913.json and https://artists.proofprofile.net/proofs/artist/86e001d3-5c1a-40b4-96d4-761b10959913.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadd689f332993758defef1f2bce01975b145162ccc890d2fd361980aaa88839b. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/DEGZ20800057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70a8951e671a680516604efb5b8f61c64cd33b0dffbaeb45cf235bc28075a723. 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/DEGZ20800065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa23caf037f984ee5b781adea9865bad03c6ecd81e419d82fdf0015a831568ea. Chain 2 (Bitcoin): anchored in block 959015 (2026-07-21T13:52:01Z), 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/GBRBN1200082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc655a40b426841e862e616cba5e33c28761e0aa3fc7df8f2d20f841d4466e4db. 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/DEM931700021.
Disco Dice Feat Miguel Francisco - Black Magic Woman
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa79f6cdecc888c998185ecb0695ae0916b34fffe0616bb258af33be2ea288eb. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/DEGZ21900216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad9cad2ae20f67ee3aa7342562fd8bdbc05c2f1dd0d237a61ee2be5b384f23be. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/QZNFJ2301956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4d4e3fea0ac1cf9e94e0d84cfa760886a8e4958e69d0c0f864ff439c7846f02. 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/DEPI82322972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa94476c0b37472f07c4dd50db59becaa0057b3a6e31920ff0f4273ae3ebd0075. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZNFJ2407208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdd7640b7c5b6f7625f7261baef3b345e074e020d0ac992b008999686b8abd1d. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/DEPI82503249.
I Want to Know What Love Is - Extended Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13c1542088edef6273efc0695378163cf4f3ac9907caf06c3416679bfe33aa7d. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/DEPI82519971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8342358278f3f46f205854ce7a080e7a7de0bd856a9b9e0bafa1327a46a865d7. 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/DEPI82519972.
NYC (Another Lonely Night in New York) - Ian Tosel & Arthur M Radio Mix
NYC (Another Lonely Night in New York) [Ian Tosel & Arthur M Mixes]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa290f50463ec2dd2339eb690336cf824cb793dc6fc5657194c20304555578514. 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/DEHG52200007.