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 0xb2c3cde333c05b0729061bac5ea2c8f377d9e0d1206474c7292d011dda6cd50a. 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/30f9bfd3-3cae-4d96-91a3-96335d8f137d.json and https://artists.proofprofile.net/proofs/artist/30f9bfd3-3cae-4d96-91a3-96335d8f137d.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 0xde66ad210027f1888f9d5b5faa9b646061b324c28c52dc9a3970d5c28a0c0d82. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/TCADT1895997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7da417cdad6b4d5394b9030c16c1ce892eac50457a87da6bfdc71d3ab97bc079. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/TCADT1895998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4378b5b02d12d9fec0d41223012da20154930b4c417d31612f8e4df0eaf65d14. 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/TCADT1896000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd52cd4f38d6260e174fd0d198d6c3816826d5c455a67e41a0df3f53000d365a8. 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/TCADT1896002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7d041917430a04d1174d2f9e2b4d74094c5b15f0117b4c3b62eff43208a16a9. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/TCADT1896010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d7d9dc756c770659aa586b155a2a44d31fd26a65a071a8b68fef5dba12e6200. 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/TCADT1896012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd351f24ff801b5f4b401436941199d169d320ff769af3b96dc2f9c78012b2c25. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/TCADT1896014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76c6577e53d2dba0615700d489ce217b9dad6db8dac6ae0c61bf5a017ee607b2. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T21:23:21Z), 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/TCADT1896015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5a1d8de826025bd43fa37869eebec425cdeb10635080c00fa817dd5c9813cf3. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/TCADT1896018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf41a50b82faa54ac9b0028e59e0457def3338c39b06bf2f443f18e703841341d. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/TCADT1896019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x835e5f232b0cf0eb5c5e59a04a4d09aec4046f470104540d7c0defd9a1174e24. 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/TCADT1896020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12752f166e475bc5ae1f0794d80c2d92feaf175c956277946a64ebb56ed75ef2. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/TCADT1896021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a2d8d826f86103b4b582efe5348be9fab31b2e63f9d8ed6d9af9f635c7c3fab. 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/TCADT1896023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaed0bb1c1e05ad82d07986476a8d8223043a68c2a796831c91fd19ed1ee9d836. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/TCADT1896026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10ca531f06c1a399269fa43ca9c37ec1db6bad119b67c2180b198be758c60ea4. 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/TCADT1896028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85c0a534a22caa21eed89a856e592da68cc752aec4353b717e3493477bac398c. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/TCADT1896030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe70dfc5b6d584226f0dc53c66f1c7cef2d2d0fbe604459803177e4e0c20f93bd. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/TCADT1896032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebe54451e2637a9b3cd335055339ac6b4f013d29db103594a8652428af2ead54. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/TCADT1896037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5b8523ffa50680cf985f2e7283042fcb836507ac5e5fd8ed9da2cf08f0a7c6f. 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/TCADT1896044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf753c636c592dd60761375cdf6b031e92ff26631df600b59d592c906cfcc6af0. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/TCADT1896047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x115717226cb239ee8e8f70cef10f3d3086aa974b1185be9c01924a3fb1291a22. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/TCADT1896048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dfded419a0f569a176273983f974b57d4707d8404d337f54d1dd3e148f387f3. 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/TCADT1896052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x896d482de51bfb65b66ba7b1cb5349268d5b10811b0f7134191349bac730aaf2. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/TCADT1896053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x487e234a12bfa2f4602e4b25367ff340f87812c86c02c9d32696fb5e4d8e42d2. Chain 2 (Bitcoin): anchored in block 958465 (2026-07-18T00:04:42Z), 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/TCADT1896054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e3916c214b151e9cf633c755d7b55852eb5d245b4291b9591e121557905ac77. 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/TCADT1896056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7212c665a999d71d4ccf60edfec1e7cd202930811783e3ede5e8fa74ed3e3033. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/TCADT1896058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x583ef375bc2aaf653b1c3641cda9cc5b1f1db0533f1670e6296ab70a08f3e407. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/TCADT1896059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88eb00b5b5b156c65a367f3c9c9243411211aa3f1344822b88a712b7ce5d737b. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T10:05:23Z), 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/TCADT1896061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa92539ee1c2c50652a0549dcae5dae19d9f8ed694e0cdefab530b5962988cc7a. 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/TCADT1896063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x290394df026c2de63fdf6810caece282a2da96ce87e9a5ec653e6cf6d0864f0d. 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/TCADT1896065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27eeaa8f26f8fd4ec6246b9e85ff3f0d0a61ed14a2c020bbab192586476ede74. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/QZHNC1930504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f4e91a75a272a764f97ff9bc3beaba476b2e9a315d77946ac0c86696263c50b. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZHNC1930505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x375d72f3d556378ccc0c4744bea27b73393eb68d70ba31cfb07faaae76126636. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZHNC1930510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad5e97387d583659faad383aa16fa50f9a18ed040fe98c46b1dce919dfbaeabe. Chain 2 (Bitcoin): anchored in block 958585 (2026-07-18T17:05:16Z), 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/QZHNC1930513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf7697a5a76bf987b4c100f43e435c26a2a519c218c080781515632d0cbfc33f. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T19:27:18Z), 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/QZHNC1930514.
Squads (Original Documentary Soundtrack)
Maritime (Inspired by ‘The Outlaw Ocean’ a book by Ian Urbina)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x471057398c2af48cb2a771b676088f33f67bd824be5f1c8d357c02e13bc981a4. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T10:09:30Z), 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/QZNWS2386694.