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 0xd7791965a858db51c86a543e3399fbb9566a5244b09dfe80267638a0349fdb69. 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/21f1883c-01ba-493a-8d90-f85b25031dcb.json and https://artists.proofprofile.net/proofs/artist/21f1883c-01ba-493a-8d90-f85b25031dcb.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 0xdd08ec8fa1ea245074beb393ea1839c3251aeed6a3f03b465d5de2031eaf5de9. 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/SE5Q51828043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86f52badf1a26611c5695f2d0ec8eaf98e0574ec594d43c9ddc62dcf46d0ae12. 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/SE5Q51820749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5437b44598f40103be225d71b1f8b9441b1f2f0893b0a25d5c385779450009df. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:42:55Z), 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/SE5Q51802879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a0f025fec9e40b7e5397f65826a5d98dbe6bb33669bf8b2e9930c7e982bab58. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/SE5Q51828191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8035b6ce556a89e7052ed4b5737b9087619a5334da28bb32298a077489c68661. 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/SE5Q51822445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e02e27487c9efb9015a199bc6adef08d35791e79d86a5112ef177ff929c2d3e. 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/SE5Q51828131.
Somewhere New (Daxten Remix) - Instrumental Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb84fedfd215a8629ff9b67d62988f5eba76f4f6abe0ed9ea1becafe5f7a3e232. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/SE5Q51900115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b4bfb8405fea70fced86104147e42b782edbb611e66c3cac0b74e58cb3b85e6. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:30:05Z), 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/SE5Q51828668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36f3e6e94acff8fc71cab10fc3c3db834bdb0ac174a1af21452c82b36de93139. 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/SE5Q51828588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0c6113fd7e1960d27d244a2c85d52089aa097de8dcae0d745e23eab08c135b0. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:36:19Z), 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/SE5Q51825024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9de760e232f6392d5f298259673a747d228d6dfb350a2070ca7f0c61fc7a3d09. 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/SE5Q51828424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d237a31938e3e977b288dfe596ffc301f30e838f2888b0ef5bd67cc6e3fedf8. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T12:39:24Z), 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/SE5Q51828614.
Let You Go (Daxten Remix) - Instrumental Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89e2131af66ad446b9083683121a175581708d18517f2620a8caa06a04347004. 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/SE5Q51900019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd666f4ea08509461df4c7a6c0e6e7a5f010a7b070a8e0e08d4c981646702232. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/SE5Q52002190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x566fa2b71603c860caff73d19b362465ca6383268e800b052289a1fa37dd67f1. 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/SE5Q52002338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b6020a71a05571b5bd08df16497214b118b75872c626a7aa7bc71860d4fc0f5. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/SE5Q52100839.
Epidemic Presents: Crates (Ingrid Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6318a2c6acf4123aeccb6d69257108c8feb26d7d810507e21b6c622fd1d5f1bc. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/SE5Q52101120.