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 0x06691cafc176b938011a10efac53568430333ac7d65733741ea73a654bbe4c42. 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/b9a5b920-56d6-4e3c-9621-06709f464b31.json and https://artists.proofprofile.net/proofs/artist/b9a5b920-56d6-4e3c-9621-06709f464b31.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Love Is What I'm Waiting For (Radio Edit)
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 0xd78f5b7c7de5055930aa7732928fadbcdd3af1717f653e5f4f742c2c43ba97e7. Chain 2 (Bitcoin): anchored in block 958086 (2026-07-15T02:55:47Z), 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/NLB931200157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8f5d65830b247eb92a4f14b5ed9461aa587a7f1dae4c2a84aeb03828b2d60a6. Chain 2 (Bitcoin): anchored in block 956425 (2026-07-03T01:28:11Z), 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/NLB931200159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ab8015eaeacd21bc02585e4bb4ddcd905fe787657e13da869236d71912fc302. Chain 2 (Bitcoin): anchored in block 957751 (2026-07-12T20:41:42Z), 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/NLB931200160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e9e00931bcff6a89ca0b4fcdf22992c613ba592004c892fbefccae8e3fc0592. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T16:22:54Z), 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/NLB931300333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc527a17ad8cd792f7cf55c59412dca6d4f8e5f900815bfb4fbeb81f55f9e8430. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T12:59:55Z), 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/NLB931400986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72f2facdf030c448c0ec4daeee18f2a7add478efeeb652a31837ea4875efe56c. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T04:20:22Z), 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/NLB931400988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7a4b7faad3fabc13d96af684c6d8dc4a05ba13aba7c45b32fb8e1bbaa239a9f. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/NLB931400990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb624386506a08768bee81dd12fd10a592468a55389e040b05d79241a9819a13a. Chain 2 (Bitcoin): anchored in block 958756 (2026-07-19T18:56:47Z), 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/NLB931400991.
Second Nature (Track By Track Commentary)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x427bb5b05dcf59d181bbb618fab0503d56c8013d7d27301ada8e0f24eda6ed88. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/NLB931902704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07ece746d6dd981cb86aab76b6fb9a430e7f79de0e73fa9d4c109491dc06572b. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/NLB931902705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d0dce496005a3ae2c338622976bcea21e167348619b4bc601c335e47f2f539a. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/NLB931902706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96550209595c65294fea3e1df0535e6393d74535fd139d27de50668255174095. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/NLB931902707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d75fce04bd7b2044fa9d5c722a24bbd07bbe3f68078cfe280dc928312f564f9. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T18:31:14Z), 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/NLB931902708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7d8a751abcc1c26d076d73fa3317322743dcd27c9b3457efd167ec7ce3813c4. Chain 2 (Bitcoin): anchored in block 958504 (2026-07-18T05:41:32Z), 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/NLB931902709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27a1d6413b485dc87f815c8692b430d64be2fe222d786f3c029c7ca41375cde9. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/NLB932002102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x969dd7b8a4da9d678eaa98227630d1aed53efb6a7bf2f45ca5ab801be0bd0aaa. Chain 2 (Bitcoin): anchored in block 959080 (2026-07-22T02:57:12Z), 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/NLB932002105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedbd74f2e2be8d3d7dcbb216756311e03eba15d0ee3d77b4ed18b6d2a221706e. 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/NLB932002113.