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 0x391d59fa685c694a5e8179e42ac32d8c7ec5de00e1b6be497d99e9d79f5226cf. 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/a63379c6-6c6b-462a-b14a-eb960547dc2d.json and https://artists.proofprofile.net/proofs/artist/a63379c6-6c6b-462a-b14a-eb960547dc2d.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 0x07ee752e640171e9311de7fde97d36539f1c17d4990099a20686214e2d006b4a. 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/DEN060000152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe20696a0350e25a478abefc267e0e7c4ef31fd6843a0dea55dc82101e5c40516. Chain 2 (Bitcoin): anchored in block 957801 (2026-07-13T04:17:08Z), 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/DEN060000158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd07e4cf80613b040af7f9304437c5fb075cd1c33b4050a1446f6dac328e1e427. 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/DEN060301387.
The Sun - Goes Down (Sunrise Radio Edit)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97a3f1fe3d451f7da2e1646b864a844198a5642dc1ecfd77d270656bb3ec404a. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T08:56:51Z), 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/DEN060200594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ae87097006e5c68f688ff92b2f0b05815fa42c1c2c0d3b2bfd50af6df86f95c. 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/DEN060200595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbe7123af0f74119d4f193e6cc905a02f1d518c06da0af87b77908bf9ebd841c. 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/DES310800455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0c754613ed8cda3789d44fbe728df137eb2bbb401e429759efd65b7a2100859. Chain 2 (Bitcoin): anchored in block 958696 (2026-07-19T07:45:31Z), 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/NLE871147603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18630f299ac823b2be4e361572dd4ea7c082db4eb2e72a29c684c2810ce3b0ff. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T15:50:36Z), 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/NLE871531901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89aad58ead51af955dd1246395f4bd99658b4060cded3bddc61bfe6edfe6b532. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T08:35:18Z), 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/DEMA61700620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x983edab4fdbfe9f0826aaa6b09662dc3975fb973ab637bbfdd295c6004b92c6e. 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/DEWW42100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd60ac84d48bb934bc38e6dce40fc36a987fbde9777623cc7c3c963fef3dcfe19. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T23:05:36Z), 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/DEWW42100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d4de9f133e954ecc512f3074caecaf403fff925992f33d5248b481e8b1c1181. 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/DEMA61906492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bf2f4192178eb4ebf41baa67ad1b0d75cd8302a2688495180200dbfcc24e817. 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/DEMA61906942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f9f2952ae739be0c0909766a1c3490f2bca3c34ca5bb0c250c33ad0513d3c7f. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/DEMA61906943.
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 0x278366a6350e52e0071e2e61c6c97fcf296aaba783b01e40b733eae158e65e6e. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/DEMA61906891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x119fa67b7eb32caca4b0cd5a8ae3c5557e70c6e18d174fc3894612f0eb9115d2. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DEMA61907068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8f6a500313c4ee0858090fd1cbfdbfddf11a260220c79147508a3b69c67a1c5. 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/DEMA61907069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x325bc62f9c0f11799d4b88c527d469219c9350f40c056f644df5ccbe297339ee. 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/DEMA61907381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ad933f53fde5633599bf8d4a6154893d241c6e625dc20575e416b42d18ad64e. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-16T01:17:26Z), 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/DEMA61907485.
Rhythm Is a Dancer 2003 (SNAP! vs. CJ Stone)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefbdc891b2227682437983bcf03caa86f28aa1537e90705656acbb2f92a5518f. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/DECC20300817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf6f3be5fa2a577511db0292c254ef9de662d14964a9edeb83a02a5bf44dad2f. 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/NLE871525905.
To Be with You 2.7 - CJ Stone Remix Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6157ba1c7a34c3a238e57a8aabe45bef639ca43a65651cb9773b4574a085ab1. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DET191508072.
Hypnotic Tango - DJ Quicksilver & Cj Stone Mix
Reload the Summer, Vol. 4 (The Compilation)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0fe9d305f70be00fc92c90b687fe768067212b3b13ec9a36910b9fec1084e17. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/DEP551700178.