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 0x6b8ccac7bb52174448dd802b61967311e280532f97876886144a24dfac56aeb7. 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/fb3d4a6a-e30d-404e-9b15-7d965b64d9cb.json and https://artists.proofprofile.net/proofs/artist/fb3d4a6a-e30d-404e-9b15-7d965b64d9cb.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 0xa0df39c8b71b3ba575af6c62f8e50050372805520b92498045207d74323449b6. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/FRS182160263.
DJ BANG JONO X MELODY MENGKANE [DUNGDATCH]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5c1b1f4c235128e6835215ede87d370d3392d518a783c3b18747cca1ee73058. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-17T02:56:31Z), 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/QZYHM2369593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb098c226ac8da3c1c41f050978931296c0613778528e6eab5ea24bd2a2be8b83. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:07:34Z), 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/IDB842103941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc48819d37e6e1e612fcae9ae06a0152a8058bb8a84d7f8e7c0b9ecd041dba24c. 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/IDB772106045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09ad2ed82286bd0d9e04943bc82c371488436c232d2686bff0660751dac5441a. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/QZTAZ2439954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x818e96c1aa2630ae6d10f50fec5777d1fad642286effb71b22ca909843d6de0b. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:46:43Z), 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/PYC842416031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97a9789f6c6c86c4c0507cc24505430bf1e182ded9018060981abbe3f53a2c0a. 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/QZYHM2422846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79b280679a12fc828944d950563ee710b001ba4d2a5388d47a31c71dad2240d4. Chain 2 (Bitcoin): anchored in block 958860 (2026-07-20T09:58:28Z), 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/QZYHM2423082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41d5598fe19aa5935c23afd34be357f3192e83ad1aa395066babd77173dc51c5. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZYHM2423550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d76f3326e77ba3ca96764e3e9a0dbd472c8b87685980440ee5c5578504175e8. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T14:57:48Z), 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/QMDA72473340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcaf370e963488f41387e695335ac8dafde4f263dd1df665f15f4a89a3cfd71d. 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/QMDA72489637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc67bfe00546930bb0163238f25a3f71632c6fdd1fc4c271a971a8c441d49b048. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/IDB772109899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe56f25db8edbd3affb7c26aa6f070b8229435210d654394d18d40e73ff3e8e19. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/IDB772115833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61b0e7206c9dfe0b2a0eb71bbfbe1ffd1b6c6efd41199352fb82651b6c8c7735. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/IDA442503027.