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 0x8a2a91d90991b6213b30e6e0f72954974c1acb561735a2ddde9d918627058d78. 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/1fb6a64d-6795-434e-861a-13e378474192.json and https://artists.proofprofile.net/proofs/artist/1fb6a64d-6795-434e-861a-13e378474192.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 0xbfc2d8a9baea9c52417eeb179878aa01cb46c46c3bcb0d38d7682ad3dcb7c215. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/SE3OH1602193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11e1bf1ed906b7c3d02feb45f18c6a2dcdda497e65825a20b81476220f2aa822. 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/GBMJG1606741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8f78e01e46c76a8f5f5a8ef9fab3e9d1c83aae3ffc487d723529bf049a5a362. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T19:06:44Z), 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/SE3OH1602197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09dc6c40e1077d2d2f691f2ea881fb5853760bba02a65905143d5e361882685d. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/GBMJG1609773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1669359344ec0fc28b82d72e1df9125f0fbf8a0c08ccaa9f1ea9546a751463dd. 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/GBMJG1607660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8643fb633c6caae5a86b33ab0a7c8e7378c15c1652fb4ad723fa7625ae14a61b. Chain 2 (Bitcoin): anchored in block 956383 (2026-07-02T18:11:59Z), 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/GBMJG1607657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0615cdb56d20d1a80db524f027280fb2720e968e4c77835c49c061fd0baf26a0. 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/GBMJG1616153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7ed59e0728e96d9fce0608d535ffa001631d22d8281a6a473061029030f8e99. 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/GBMJG1700927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74e50b576629986157df83b49a26223e2621b2c0976b5d50119eba893b4d35b8. 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/GBMJG1702769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb488718da89ab4a604d50503ecf0f882c008d3044685cf7edc6051bbfc99f922. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/GBMJG1702771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedfb539f641104036c08479ec41074c190329951836c954eeb5cc2f191583bd7. Chain 2 (Bitcoin): anchored in block 956383 (2026-07-02T18:11:59Z), 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/GBMJG1702777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1b9a669710f470d001da379f414f63855530d2febe5213f0323a88419608df9. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/GBMJG1714130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaa0b2fe5f8d1aa9e412cd19466f1330933200aeb146170f9105b4ad832ace83. 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/GBPS83839329.
Shhh For Patting Baby’s Back Shusher Mother’s Voice
Deep Slumber Vacuum Cleaner White Noise (Loopable)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8c579ede6558df7e0e68483bb5a17aa0b57d4120941a5e7deac50fa33d66eab. 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/CA5KR2161174.
Super Drowsy Sleep Sounds for Babies' Quality Sleep (loopable)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16556741c7a4e3c35bab28e290268cf81e00783abc131180b9396037f7a2543f. Chain 2 (Bitcoin): anchored in block 956748 (2026-07-05T05:55:59Z), 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/GBPS84717360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf84a68467064ce8e6aebf8ef696f3a1c903b811b6a882e0386bc0b18c83b841. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/GBPS84717351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd494dacacb5f271319b183b5a09d4c40382b4a1724147cde5de926e8efd53410. 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/GBPS84717350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83fd056742acf080cb7781ea54f0f53c6edf6329e5a2be8c16be3167a3bb7c3c. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/GBPS84717363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b5780f4972cea4d0d817ee4f6786bccb6eb1a345fbda3cbfdb2de650140bb3b. 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/GBPS84717364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7602884fbf7760ff9c347cbb426bdc9181b863281d5bd7a4d535b8c0a73b8dd8. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/GBPS84717362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96ca79d0b6c6121165e971486b4acc3668b0f14298e246819566996690d45e51. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/GBPS84717361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaa04c107e8acada048a3fd71e53112e5ec63dbd62dae6478a49645610f970e8. 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/GBPS84717359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6081f50143a3e496b630f3b97c90bc4f43089bbca23a75cfb59e916b76ea69cb. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/GBPS84717352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea5421723ba0ff07d45f8100fbfceb876047925ac5110bdfe0e14029ca1c90c7. Chain 2 (Bitcoin): anchored in block 958622 (2026-07-18T22:58:55Z), 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/GBPS84717357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x032f29b008b236d6059b657e873df97491270c07b80d7324a8a5b18e188efc58. 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/GBPS84717356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21459c88706a068dbea0573b663449e4a5e3bac66f2f2e770bc310d7f532b216. 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/GBPS84717358.