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 0x963154414513fb444c43425dc75208f73c68aca2ea3e76b02b082e58c9734650. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a6026de7-d2fb-4363-9b89-cfdf8043f825.json and https://artists.proofprofile.net/proofs/artist/a6026de7-d2fb-4363-9b89-cfdf8043f825.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 0x7fa6fd73b8d77b3c68fbba75e35323938a0b119876d746017edd5abb402167c2. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/PL52J2175345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95a218a94514d80cb35a8d27346d52c4ef5ef45729c3b0467938606c3be4e9da. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:04:48Z), 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/PL52J2175349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35e80e9a56e34cc688bbc9c8b6a89264fe12ea3df4d5734fc03f0a25ea38335d. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/PL52J2175333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9af7111d422b3a4d844d7114c7f08847ca3a7de836fcfea3ac75a5ffd74e9b0. 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/PL52J2175339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2f6c64516424855ee33e8c63c17ae5af86373af52958175b5f26bf10a1ca966. Chain 2 (Bitcoin): anchored in block 959015 (2026-07-21T16:07:03Z), 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/PL52J2175342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb97b8673b571a8a831dd0359384b54b29403b766a29667f215df6673cc8234fa. 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/PL52J2175344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5fd54b161d6da83b6da717e4c2b5e208a8ee481d3171dd859555df4d420d83d. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/PL44R2103770.
Violin Relax Sounds Music - Ocean, Deep Sleep, Meditation
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86bfa57cf45df03f0b8f8a4482fd3e1acdd7094d2198e57a71b9c28aa1789476. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/PL52J2204997.
Violin by the Sea, Ocean Waves, Meditation and Peace
Beautiful Violin & Ocean Waves, Instrumental Piano
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54456fc81f2c910246173cce400c6d739311126cb896fcce519035abb5a56ac0. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T06:54:44Z), 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/PL52J2204970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3756d66826af3b91df7c75f25502204adbc137d1cb8b598e3b94561b6743a8b. 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/PL52J2204975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6ed1cddb9e97a23e90342d76a37c62a52cb28321c32478c60eb90610fb46129. Chain 2 (Bitcoin): anchored in block 959009 (2026-07-21T15:19:55Z), 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/PL52J2204967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x365881f115ac6edeafadaa7c1e135727496f26ceea6902d18d95419fb849e835. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/PL52J2204973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c4bd4bfc56d43bc9497e71129b4f8f1a2e88ac9a4346bb2e84c7ad066382ef8. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T08:56:25Z), 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/PL52J2205036.
Beautiful Relaxing Piano Music Instrumental Violin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde11357f058c192af534e42f5850deeb4b5da62deeddfe8c0fdfa5b6bf81d906. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T18:31:38Z), 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/PL52J2204960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb0aa76fbe05f90ee269e15b6b0e7bd17a02f8147ef7da9f76f57e7ce3cb8b88. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/PL52J2204961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17c946b4fe6187fb996db1e19f5c8f33b5fc477d8538fd5d08b447505d2eeb1c. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-16T00:37:31Z), 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/PL52J2204965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42c8437075cff7eaf057259068cd497bbfd47f9c800661dfd7c65f99cc0b9d43. 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/PL52J2204957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb27102dab5db00d445343e02d25788f72c915d6e6726439525b34c0d629de8c. 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/PL52J2204951.