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 0x6cf301b5c678f09b8832379d9719ea33e6ab57c9b8c6fb4f6da787ea8be1f269. 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/15526c24-b26e-48e8-8821-7a77ade56c6d.json and https://artists.proofprofile.net/proofs/artist/15526c24-b26e-48e8-8821-7a77ade56c6d.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 0x6aff80721022900259173426a583c4ccc9c5812cad8a27a5dad446c3f268a73e. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/SE4RG2034401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc147d7b529592c054111428871812cb0d6ba96743d600a1889e098bba4839e3b. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/SE4RG2034402.
Loopable Kettle Gongs in Waterscapes for Meditation
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x051374a10913545deb76077f1a547fc29e57bb6f337acf8224d9d54700d61453. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/BR6KL2000206.
5 Hz Theta Wave Surrounded by Rain & Thunder
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18156b4009662b4fb93a7d0c4be2a8dd8af5481db150aa36bcf1000de52db706. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T04:43:10Z), 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/SE4RG2056602.
8 Hz Theta Wave Surrounded by Rain & Thunder
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8355be7237035834a1173540418a5a3cadf3001564a50ec3dd69ccc51d46d1f. 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/SE4RG2056603.
14 Hz Beta Wave Surrounded by Rain & Thunder
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b9652116ed0977d4215f10a59c5582883e7616a8923b8be6c57200939fda4bc. 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/SE4RG2056606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9587196d9452d552e3504ae7a799c7756fc488d480ff2d85921f74e388bf7e0. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/SE4RG2089004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccb5e833dad816be574297e84d9e62a2a65fdf40615e14a462cb25df9208365d. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/SE4RG2095001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35205c5469ffad0422e2b8894bbfd8a2e978832372e616cb263c785fe244c444. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/SE4RG2095004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb7fae413e4ec718a9c21db16c5c972185eb1c16a9f7081bc2f64c5eb881db20. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/BR6KL2200164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x779db86951da19d43b2f59f22653a5dcbf957943adb07566fa280cec4bc0c5bb. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/BR6KL2400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe682b9531d2a7bbaff444b4bfcfa68db7bac047f86db24f77eb9cbe83acee7e1. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/BR6KL2400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x779db86951da19d43b2f59f22653a5dcbf957943adb07566fa280cec4bc0c5bb. 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/BR6KL2400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x132614753ce71e5b23bce5f5519970be782b2591c60b1515ec5912f2729f727b. 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/BR6KL2400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d6da2919821a6ca677854db635a9cc6ce1421421acbfc2a287ade2ecfc643fd. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/BR6KL2500002.
Shells, Ocean Waves and Ancestral Instruments