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 0x4b13c6063f743cc28bf586bc3ea359718d3fb11a10b3d34ae0ac2a48c8906891. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a027a0ad-acdd-407b-8558-79d0739ab129.json and https://artists.proofprofile.net/proofs/artist/a027a0ad-acdd-407b-8558-79d0739ab129.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Balance presents Sunsetstrip (Unmixed Version)
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 0x580bda1250741c7fce0bfa5e9ee3260cd66524072d513d426d201ccf154dec6b. 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/AUXN21919089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66e9c7a676c78d0e034309c247fd5ad71d8c5e3422559e20110674c826bd7dea. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), 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/AUXN21919090.
Like Forever - Hernan Cattaneo and Kevin Di Serna Remix
Like Forever (Hernan Cattaneo & Kevin Di Serna Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e71b4051527c2a50f3d4b8b01241fe4431ca84180f912eccf10af95f3967927. 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/SE4MF2400638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bfa6e1691646e7e65ce565b9490dd9f375439b729c0d7bb54712365fd570ba7. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/ES8741707110.
Balance presents Sunsetstrip (Mixed Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf827cfb74e00773557bcdcf8c02707f43714bf3fd35ee5958a9909d59b309eae. 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/AUXN21919055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe2ac4cc82052ce7a2ad8ef9d528f96b1ab63a860175f9e5dcb60e8f1879d1eb. 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/AUXN21919056.
Balance Presents Sudbeat (Mixed Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9d85c3589503705042b5fe2039af30df30f09965398e02ba06ccee1a2f6f64d. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/AUXN21726360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd751a49ae187b4bb6e318edcf6379ef911fbc948375db3c8c71091f60f3381f. 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/AUXN21703979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x989cb411bd01d8f9a90d0a27905cbfcd6a41b573423d8ec501c6cfbd81a7680d. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/DEY031601315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02af589e07947ee1ff37f177f40eabcaf76f3fcc903dbb49415ad74ba85abc26. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/DEEC33501146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f0751f69bed1f69449927ebaf98a7b9e48cc1e0573557773c9a57e278eee79b. 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/DEEC33501147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0830186e5af1086897c618fb08e1b0319b0f1ee690f38314103d6ed56cf57deb. 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/DEEC33501148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15924fe2939d274c5548ec3d4d6b508877f4d7171d2c72d4dc3c4b3ae47753b7. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/UKSP41900107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde86bfd0876bf1e4524b7874ebfd5b205d7bfce004da7fe0762a6eaae97ab23b. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/UKSP41900145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x846f5f316448b05618d8d9ac41d12db9b03b5a116333de839ce91206ae91409f. 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/DEY472570656.
Ultravox - Hernan Cattaneo & Kevin Di Serna Remix - Mixed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fadf6e0bd4b5f5cff43cd223ceaed9e4efc3ce2895a4fcf816931540744b290. 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/US83Z2486301.
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 0x59a661f7311725ec5c1fb53f0a93d61928056b5bfd5e7221bdecf23ad245844a. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/ES84B1900131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50ef066b2e01f659d0068a68c5c34cbd779e55681ce9a368de55b0b05ff78466. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/ARKPS2000016.