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 0x02a3187815bcc4ad39da1ec9e627211d4dbcd6f3688861f10fa0abb809795c7c. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fa635f58-cee1-4617-a56a-ca7167462302.json and https://artists.proofprofile.net/proofs/artist/fa635f58-cee1-4617-a56a-ca7167462302.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ride with My Bestie (Queens of the Scene)
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 0xd5ac0b15036ab3bd32b44dffbda54cd3cb2a61de34cd4b2e185d4e561c12f438. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T19:26:13Z), 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/TCAHX2471749.
Dancing in the Morning Light (Radio Edit)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5237431c646843a2bc2eda7980d9e6a29659e23150553d69c9ee2b6859d2547. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/TCAID2474170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2b2c42d3a089f56c5d89adee9758b00d3655c59285007361464b0cb8028f77f. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/TCAHZ2482803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c17466956e2f572b3026377f7cd905c0dcddf80834a388b3018826e0e03662b. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/TCAII2491765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19ee543e539ce56b41457674a8aebf5b97a5ac6a2122004485509ac340ac18f8. 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/TCAIA2494605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14f6bce0952363e95c4f4975b054e68559a729f6dd9e29b262d9090c298173d5. Chain 2 (Bitcoin): anchored in block 958708 (2026-07-19T09:08:25Z), 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/TCAIF2430173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43ceb380552ac2efffc3d2a673a7d03439ec3ce69a3e2728c9e14d5cb96a56ff. 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/TLVEM2477142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dec221c27024d1a22632d67d82e9f796e2b92dc00263c563172fd8f3935da63. 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/TCAIE2440905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1136a8cd40cf299396a2043857492ee97f7ed3495eb421f9389ee826d497d37. 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/QZPEW2508150.
I Was Trippin - DJ H3MP Tropical House Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a0a21dd4cf0445834c27f74842afb56e60187d318fab949b2a1d3752cd245fd. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/QT2VB2440532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1bb1fc3279ab7760a13f113460a8470087d82caee2eafc6f251325f1398bd7a. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZPEW2507042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19a11bd5610d2f2d4d5720b1fa1d1ac7a91f98a4c140925e33a20d46cf6c230a. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T17:58:04Z), 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/QT4K32544136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f9bae5e11ab66dbd35e7cd8c636430fcc4c75ce9f0b391edc42389fe2e3a50a. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T09:11:53Z), 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/QT4K32536689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x520b0c6c79cd1688651fdb056ea91de95e0876da547e70dd537f71c38a63191d. 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/QT4K32540147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1a234b27830663bba74984707bb95a173addc028356ca2870926eee4f0993ad. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/TCAJU2583537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc56235131e9d19464269ce84b997004f3b3a3d8655dba93fb4992aac9f145674. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/TCAJX2554803.