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 0xbbbfa07eff4fb9ea4a4d26993ddb2e832e38537c998b344c677dbda29f7079ba. 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/40c0e181-1414-4fda-a81d-f0096b715aa3.json and https://artists.proofprofile.net/proofs/artist/40c0e181-1414-4fda-a81d-f0096b715aa3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Le Coeur Solitaire Dans Le Sous-Marin en Verre
The Chained Alchemist Held Captive by the Black Sky
Chained Echoes (Original Game Soundtrack)
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 0x1842a72684b31a9f2d80b1aab32db867b7df612b4801afcb936f79d638e3ea3c. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T20:44:14Z), 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/QMVBN2200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf35b86485160e88386b30ad236ef12851695ffbdfb58a7dcafc9cb49ecad4a8a. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/QMVBN2200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc575336399e7c380f4784fd1a1777e987cf5f179dadf08d2182cc9d43d38eaa. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/QMVBN2200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x589c59275276db256e757c52f5720ed3fb5d33db0dbe823da207af0a2c738664. 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/QMVBN2200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f4b787d4fe773edae1de9a6b0d25a54d7f21e8936a3709dbb53ecc1025a6c8a. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QMVBN2200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cf1205305ab65d45695d34bdab0b02df04b85829399508aa8d271b6d339369d. 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/QMVBN2200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f94cba2efa66a2d561a7a591174f60f078bed0824f52581e35e255469a61662. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/QMVBN2200008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaffac1e8410c6f51f0f0c2f1474fab5d195b1a43dca1a042bcbfc03072044929. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T16:16:18Z), 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/QMVBN2200009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14aba12ba2d3b70f11dba1c360f2a7517e0eb83ac5eccd0d2365041231a25541. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/QMVBN2200010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e029a2805a55323d92703e9c1a3ceac24d131dd5b3cd92a8f70850e95e19277. Chain 2 (Bitcoin): anchored in block 958678 (2026-07-19T05:59:57Z), 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/QMVBN2200011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2307bf8aa2b025c7fa08b0f62f21e3f1715bb375c73ebda477577978ccd0ff7e. 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/QMVBN2200013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e9490dbae0384b701b817753d3511366c67245e08b50969febfb57db1af36e5. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/QMVBN2200018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59b8c4bb9de142bbd0680df24ef7c0ebe5bef853559be59f8c52f84fad024954. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/QMVBN2200019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdd63a175da41f5b415107216292f0f53d2bf45d52fa72d5cedd160f6a0519fc. 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/QMVBN2200021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bfcf70ca93ef6ca1728b98447aa2c9f94fe6ab94667b1bcc91c2dd1d99355f1. 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/QMVBN2200022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13e96f44d83cae833efaa2fdc8f9a27a36cd6ce41fa76f183be82e2695e9f915. 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/QMVBN2200025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76660719c81657b6d25091e0b1c716e6229fd5681a2738120d550d5cf4481521. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/QMVBN2200027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06cec4a2488e92f22c2aaaf037c5d379b0bdb05e86d68fa44f5789c9b8fbac44. 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/QMVBN2200029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb62fc8ce75ca8457a35203df9c5394e1bfb229ad0592afdd85af1ef5e0465980. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T16:16:18Z), 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/QMVBN2200031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8449ac4385f7758bb9af139126107bb46c015e665633138c9d085d86220dd334. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/QMVBN2200033.
Chained Echoes: Ashes of Elrant (Original Game Soundtrack)