JSON (JavaScript Object Notation, pronounced or ) is an open standard file format and data interchange format that uses human-readable text to store and transmit data objects consisting of name–va
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 0x6b14a5a3c2248d124fd879208e912d9205b9d2a6276e5a93189ff43899e124a0. 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/848bb8c7-dda5-4aa0-bf52-1e23f0b8faf2.json and https://artists.proofprofile.net/proofs/artist/848bb8c7-dda5-4aa0-bf52-1e23f0b8faf2.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 0xd08c491eb11b9b81545d1b9ac56d9800952e696431c4570dc9279f3d025ce68a. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/USTCF1089341.
It's Alright (feat. Mikeschair) - Single
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f753850be16f7ad341c46fe94516f41c7abd3ebd97bf48579eb5a81e3fcb894. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/USLSX1200032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f19f1a8f4535722d32a63e58ab5fe6a05276c1e10c58ff0c0fe23a0dcfba586. 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/USLSX1200036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeafd531e45de0333ff2f208a8d883d622fd4c9e2dbf23bc6a85e24522b05085a. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/USLSX1200041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a0ab451c1a78132c9b3b23ccce571748515745ed337f9f6125bc553132de2e3. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/USLSX1200047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2820819ddd0f8c2a97063d77ea0665a5d54e2a3bf2213727fd54253b1950a65a. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T19:07:24Z), 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/USLSX1300501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa18d44443855f074e4c0fc93d717bb094874c49878999322138bf3012617bc2a. 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/USLSX1300505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8223fe73cc9ca861367c0c24b5a9376f9fa24df52b56449a10ed091338ffb588. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T09:03:21Z), 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/USLSX1300508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23a5f7a7042cd55e041b56320bfc76120fabd0a1e51d5ea061f5e97ce003a57c. 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/USLSX1300513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cd2b3e9ebb130ecc0c8384e856b16818efb5948e4b48ca5f65193debcf4b429. 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/USLSX1300568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd3795922eb2413bc6c44b7dccc655428869f3243038d0ab73ae12ce46e95aa8. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/USLSX1300570.
Love to Do It (feat. Keno Camp & J. Carter)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd6b81e4f39a7bf551f6f7bb00134ca93b9f9d76835fb063e6a76b46e834da56. 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/USLSX1300576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97a767f1a6405ce3eac717901d0139d3024135ffc5ff11f402a54b4329245130. 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/US4N80503138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25a8f3e633028e10186f978cc600a9090f6645b66e38c245a8378501e6a36dc3. 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/US4N80501085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28c3c926b8dea702d17d32c1fecfd95500708701d2e7b7bdc15e543272896bd8. 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/TCABN1379152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x447742de89f5c1ea80abdfe7e12339fd4689ee2cd2d7c3b171c7253ab0fbb297. 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/TCABW1453022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e3eac4c53468eb62af2b310c7403fb1775fb5be844a23edf7b988a7b5c0a1e6. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/TCACT1619974.
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 0x27f76f6a94924f0254ef60e227acfdcc5d9414007e4e56181396e86a1c4031b0. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/USFVJ0800002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19fd9fe9d76e7cea12717459f4257638f1e3f97af9cb4af81e69e8a668c31ece. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/TCABA1131588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39eed15be1b6cc8ee81e6733d872d493baf9b3326c0a48b27a44626899e4c490. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/QMAAK1708245.