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 0xfd2a6b7d45ccbda6b69fcdcaad6bfd1c6c23873a87d30d16630f42e1acc49236. Chain 2 (Bitcoin): anchored in block 953754 (2026-06-15T06:45:19Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/acecb533-107b-4eee-9a99-e09a129b3722.json and https://artists.proofprofile.net/proofs/artist/acecb533-107b-4eee-9a99-e09a129b3722.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 0x3ae5d5a171d7d165faacfa978e71bea759bcd5ce4f53a6424f799fe51cf08336. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/CA5KR2475580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf85472b11cfdb70d4937f228658cf087c493e9d15e0973bc69bfa771f84e8f7a. 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/QM4TW2283981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x972d9c47b16936c321514c6d59df5bc59c3d2541bfa28a1715167d15696a2aee. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/FR96X2416871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa543b73d12824764c934645ac727786893f3233b5b06d02ade2e7ca598ece314. 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/FR96X2416872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59ea2a22b713c35bc97b3df79d67185c6afb8af89ba3833a7da10564ddfc954f. 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/FR96X2416876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ee50ee6d9f2936388d7c01013aaf671e82944cafed9d7211e78e038f75bfa82. 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/US83Z2340248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16a9220387cc0066aafaa8ab8be0362c1217b4839f4a0cbb282da6c82be0962e. 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/GBKQU2358226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x374ccbd74a2ff50ea7071fddc5ea85e883e3058a0d2cca235c1bfd2b4de2d09c. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/GBKQU2358227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa86a42d885ed3cd4905d3cfce6f321b1f15952732bd9f921a9a9c3825ae98f2a. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/US83Z2239402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e6357ef85a42a9e4d79e255eabf67a7bd97130838f858eb85536c54190cf26d. 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/US83Z2219045.
Moonlight Forest - Ilias Katelanos Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd718bae3849027a43c6e09fcbd525e5b2f5be66d04c2e6ebc03f9a127f957331. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/CARE92201478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56172c0d57bfb8abe89a1a2ecc52a0c7e8004219b5f50726c79a7f7e0f7de534. 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/QM4TW2283990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5153592d4780b681cbfb99af6625e6f6217972142053a10208115fe466998a56. 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/US83Z2201590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dcc040c97e57848742cde9f47ca06552fc37e2d04a2838e05151359f27985bd. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/US83Z2148644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7e332f1e7e6a0c775f47626a8b5d7bfd76373194dee72c2a49152edfb01e169. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/US83Z2146120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24bd684ac23039659e8d10d039af4ae320d848b61278f3937236f353ebc126a3. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/US83Z2142696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf51031ebaaa7a7231a225e23f3a21403453ab277efde81967f532e817d587f1. Chain 2 (Bitcoin): anchored in block 960199 (2026-07-30T02:30:29Z), 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/US83Z2148640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10305b7c026f03ec18616e210dfc22bb0a12bdf99272d7f2b4ad97695e5e6e4a. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/US83Z2148641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0211d914495fc3c0c280a816fde23a4979d9c61f57ac2d03b80898eba2dde049. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/ITZN62400215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x379851c4e94cf39951c8114ea1e543a6d38b775b021fd8c319e26ea4b3430b8a. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/US83Z2205608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x590cb4bc365935e87e28538c175c46f660d4b18a613ffd66d9e24ee3296785a5. 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/US83Z2304710.