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 0x0a9c3274804fe8153e8821edeb906bbeec4888eef7e74e587f163b4b37207d75. Chain 2 (Bitcoin): anchored in block 953759 (2026-06-15T08:04:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b2cf88cc-a0be-443f-b54a-56b6d36f5f97.json and https://artists.proofprofile.net/proofs/artist/b2cf88cc-a0be-443f-b54a-56b6d36f5f97.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 0xa3701e6c51b9af957c41c84b3b4333bf6e7ab63cc44f8b74ed8541be82961255. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/GX8KD2263036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd9e27fb4a968e940c028120de14c4b5337ced5c3493c1efbc8fd9a9cf8bd6be. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/GX8KD2262972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb773751dc85e637c402dbc80728aefb8fb9e96ef2045b9bd7be56fc82d0c905e. 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/GX8KD2262973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x624cd5f6849c190d4b1b724afba8244c16a0aa96ef8fefd85ecf1f68ddf65815. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T18:29:43Z), 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/GX8KD2262976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x209d7df111796ecb5ab1b308f0916bacfca3380f981af5823882e927b50f2919. Chain 2 (Bitcoin): anchored in block 958054 (2026-07-14T19:33:24Z), 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/GX8KD2262977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6620ff1bbf07eba5b6123b5ee184fd25f2cb01d413bcdf453d6d157af98194a. 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/GX8KD2262982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7c27a8981bbaea0d4e8f6b4032126a3b4b4fd5980647a41f5ca4c88303405c1. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/GX8KD2262989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9bcdace29084ad4a99c419cf2332ed87c908aab7f105ffc3f3719245d719ddd. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/GX8KD2282532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x127c613eeb0d49cccb7cee91724b2320ee6511777f1b15e9c7962aee2c3b7059. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T17:50:59Z), 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/GX8LD2229128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc156f13e5b2318bf11e4b3433a56adda1e59830ffeec90f02ff45309f4d36eed. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:30:44Z), 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/GX8KD2363033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x136ec6017f52c514b8b0130a8bd59a30f7cd420e7a88cd9634f65420ed5cc205. Chain 2 (Bitcoin): anchored in block 958724 (2026-07-19T11:19:01Z), 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/GX4R52348650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf43261169f98e336a616abe82cf0e0a98458fad8a3edda6827623bcc1c3662d8. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T04:28:15Z), 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/GXBDS2385698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99543f6663482bdbba710ce1f9dc6ed2eea18ff934b4b7e62a65cafef63656a6. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T05:07:51Z), 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/GXBDS2313689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2d68ae82decc3a169868ce8c601ee74eff0d61452255807795758172a21365e. 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/GXBDS2372655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54d4bea1a0047f37616163ee926b4493e0c95eda9231ed5e866abefecfda8571. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T04:35:29Z), 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/GXBDS2381406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x869361581c4de4b452876679551d58f68a7c4f2694101e8af74dc74ee96fe754. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T18:18:00Z), 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/GXBDS2353990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fad7125e8dd8adb76deb9acd8da84600c2e8ae1a4ab06836b7ea568becb2639. 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/GXBDS2352175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fa780bbc04d816cfb542aac2bcd6bac12de108603f4d8e7f6515ac7e0075180. Chain 2 (Bitcoin): anchored in block 956404 (2026-07-17T03:58:00Z), 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/GXBDS2373541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d31bb1f4e79a2e6152afd51e468b7f381c2a7fab6d63fefc907037a39778a2c. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T07:02:14Z), 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/GX5MX2471144.
Thingamabuild (Original Game Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd74b09c461604f0b90661f0510c7a74293072fa4d76f2b016800cb7e4a4612ad. 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/GXBDT2425739.