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 0x2cb746cf0e1582de8dad401b9c879dc2c0e3f725cd89e4a1b9d8804d9618bc62. 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/8046d94b-6a34-4479-a615-5c9d47848bbb.json and https://artists.proofprofile.net/proofs/artist/8046d94b-6a34-4479-a615-5c9d47848bbb.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 0x4674718f7709dcaf914abe33f8008839d0bb67d18c28c805782d2d6f9c70f991. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:41:49Z), 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/FR96X1936893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fe6e46a501d8d63d74c763bf1f5a5a551ac2e3d432910fa644cc8dbf59fb28d. 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/FR10S2051549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc704d6229685ea20493ecb33c3904e00fbc621e351f45cd179b2fb9fef09907c. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/FRX202037024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x739e6f68af60c13920bf8002309d2e75f9fc19991f4bfd4521d71848fea818dc. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/FRX202037025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6096181ec4330db8a4b3816aa673bfbdff6b57b6e63146d24382ad48e4badfe. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/TCAGK2265906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c6dfe325531684e12b419160d9f74d14cbf4659a58e0a81fffed90961fbf5e6. 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/TCAHB2355596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9739be1806557cc6a73ae43cc892a70555ab2a8befa820e3219c2f563cdc8af0. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:00:58Z), 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/TCAHI2327610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33168f29d2768e9b989085559ca8598745bd656ac8968d4ee5be53575fdf5faf. Chain 2 (Bitcoin): anchored in block 957558 (2026-07-11T11:36:38Z), 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/TCAHK2395082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcedbd82e071c416e52fd088aea1145e4780079cf530c748ee20faee888b8f3e0. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/TCAHR2320897.
Песня про скибиди (drum and bass версия)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc811c99e6559de0d1c8cae2f871020328efbfc00f52a57340d86e0ecc8ffab0. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T12:51:37Z), 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/TCAHU2480840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7dd653b3e8fde76ca890c78031c7c2fc1b9df042432fe0fc847894743bbf96a. 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/TCAHZ2407695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa822331d4fb6f616a5ed9ed204522b37dc836ce631950841c919fe306144497. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/TCAIP2420123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5b174524b896608bfa96a91c590f3f6559992ed73b1565941ef9d72ca92b601. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T18:01:47Z), 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/TCAIS2447757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3277ee2a57761c71a9153023f002339d04e845cf08fcfcbe47b002d89746868. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/TCAJH2555107.