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 0x23c53e11b774b7fd48d74eb8afeecb4c438fb53ccc9dabc45ba3ff37bd14a4f2. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0c9826aa-2a9b-4662-9133-88d6c99cce23.json and https://artists.proofprofile.net/proofs/artist/0c9826aa-2a9b-4662-9133-88d6c99cce23.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 0x87c27a3041219878a4522805d321aa2f78b83826d707ae399e897b4f5318875c. 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/GB2LD2410262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03795a7b2d4a280d91ec4a506453730f42c466fb0a5d2695f9fd6faa44ede486. 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/GB2LD2410263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5941bff6d52379371530f0b9eb900ab6f2a3d16fb479bcdf1de74a85f41f1af1. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/GB2LD2410264.
Shadow Of Ages - [BORDERS] & Fryware Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1ae7eab9d51c672df8063696a2d8736666e8a7d7a03353946ae3f300fea367f. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/GB2LD2410265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2162ca8270f21897c3da386c1dba4d73fea0a8e0f9c8fa1cd41dae0c3a7332cd. 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/GB2LD2410266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b44d66277fde34e024e6428cd29b58a6bf80fdb58e7a65ebd1888a41edf186e. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/USA2P2472372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61cafd28018458f2027431a69eb539207103de131c3bf5e90ddff74e7f93f478. 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/USA2P2472375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41a8ee72299bce09e80778cac8da9ad1b545ac92e6a63952f106e5ad3d483f25. Chain 2 (Bitcoin): anchored in block 960173 (2026-07-30T00:11:40Z), 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/USA2P2472377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9a1443615b9548295ee7a1ae528eb40d51e009eef810b9865a4bee440676a8c. 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/USA2P2472378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a850e7eb474eb8588dd5a28c805b09b2b945ed841374e68da375a204a760035. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/QZH5E2438466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7813298fc2206b11a31f0ac91b947ecc569f682bc3fefd2661f29c5e9d0d5fbd. 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/NLCK42413619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85cf36dd66743daf62d5d981da2bb6fa89ba18af9a9b9de2286330d863e32ddf. 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/NLCK42413620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6eecf184426431d04fca9fcd214e58e812213294757997c5faaebf172b28bbf. 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/NLCK42413621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73b69f9ad89014c9d317309de33c0ac4959d76508a1fed03d6b7850ba5b200c7. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/NLCK42405411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb97f8a1c6094b444c05522c5350d42bad905f72e01e1f16343fd4e8fb47941c. 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/NLCK42229686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fd8286c632c4b9a7840be58d05acc7d339706b649068a67ab6d7e25be649af9. 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/NLCK42230351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdea4b722ad1bba3224d16cae0d90287c74729e1865237dc9677fa05080e2abe4. 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/NLCK42224858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x065933402aab434f7052eb58c5698a8a8fc9c5698c7d020bf7305733849213e1. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/NLCK42222432.