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 0x0157e9405c106d49cb1b7672015992c0603a1deb670a49fb6899e87b51e98ccc. 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/a080b95e-ff3f-458f-87de-c57685e2336b.json and https://artists.proofprofile.net/proofs/artist/a080b95e-ff3f-458f-87de-c57685e2336b.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 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 0x0c72e860589d5d3ce0cecfeafa08012c45f288b1dc6e07bbf64047c423da3d8c. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/UKXN22488128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca2a54c0f992258b34aebcfcae2f3b0154fc188dcd6024e2dcbb2dfccd502c2a. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/GBLFP2480160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x151190bd5f3b527a63cd7a2071a638227f256f214a64aa1d0564f86d43be0725. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ES75E2405170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b8b098fe08372dc5096570d1cc5f114790802e39fd6d23918133e373346130d. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GX89G2417581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8502176900c2713e3fc8cce372e26fb741c628723c0a4ea09660f8e6173f073. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GX3Q92435379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x364a2cecdb00912214d37e397944bd61d4dcd5bd4cbbe5eb936a437d29e576b0. 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/QZMHN2452412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf090a57edb98676c5e7f461ac914ebfd5cca2a5dba11bdaa2815c55bfefdbdbc. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DETE42400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8491909181ca4eea3c709e93e0aba0b24b266554ca3b897c158ea28673833091. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DETE42400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84c66fb52b798a415427b92d116316db8630408e020e46cd3e3fe9c339e10890. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/GBLFP2424801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x390880f08c74392931f4fc21c0c0f7867b25724abd23c4e6658699cd17e52c1b. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GBLFP2408078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5bbe564025df20b83581b8f957e290fa343d61e714940df0929fe05259447ca. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QM3DF2272286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28db46b937e591c93f7377a511023f86327fdfe47eaea8d08a68c260fd46e793. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/ES5052300189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a9038815112cd52397078a86cec3e7f56fe871a965c95e3568127ada4f6f0d5. Chain 2 (Bitcoin): anchored in block 960165 (2026-07-29T23:29:40Z), 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/NL2VN2200089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x638f45337dc3dcafbd47c3db7ea3a990099095fdf39448c03676b64788ab8651. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QZTV32200263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdad0b9182623b9f429c2bb626a763f82aa48bf070abc72630ab169a605b1cedb. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/CBB2M2200087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19b445bdf66b3f08a9c689a7cd585ecd61828cfc22531fd06a602af5f6251031. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GX8KD2226551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b7a6d0cd758a4acd6cfe3d968eff762f85ee0fab4c5540c720fecb03f5ac9d6. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/UKXN22271732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8c2682d3d6124a6d4a104a192210905baf0f06b0883fa1377c57a7f7d2569d2. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/UKXN22217596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c388914d4899651667e3adc5dbbed501034ce3a8d5fb271fd4886178afce951. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/GBLFP2205874.
ASOT 1163 - A State of Trance Episode 1163 [Including Live at F1 Mexican Grand Prix 2018 (Mexico City, Mexico) [Highlights]]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44050828cc57bef52eb65ccabb73b11b1063f7cc3b0bf911d3e3d885f51267c0. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/NLF712401320.