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 0x286222ef27df352ca35ced602ee9abbd5b5120a7c51e67ba61b52050606cbf0e. 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/300183d3-3039-4694-88ec-9e534ab88500.json and https://artists.proofprofile.net/proofs/artist/300183d3-3039-4694-88ec-9e534ab88500.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Gads Bez Kalendāra. Koncerts Mežaparkā (Live)
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 0xfc9437037a98b8796ff76e211cbbe1be5466ef35559552e2112310393398dee4. 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/LVL152203418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa4cacbde551e9a4240ff81da12f915219f48bbb9b4b71e8fbd1b2619d9e49f3. 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/LVL152203417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe696ee4593334565da64889692c25d7aec166bef5609ad045f05a5117ee41d3. 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/LVL152203416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x735d9eb1c127925da12f098d9964cd4a5081c52afa3737bdf683b0eb38a715ba. 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/LVL152203415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf838775ec637bb0adfb24b3241ec5d105cb5bd3c8c3df05e8f751f00923adfe. 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/LVL152203414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x334e2844b062a6279a09cad80cf8070078647e928eb6994df6a8986e000d3cce. 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/LVL152203413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x116bb9a45bd653638bb13598b7c18435840191a1dab226565ecfc3f5a0c04e13. 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/LVL152203412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d0d396e1a4551371f0b4a68decf9afce12be40948cb9827d1ad6afa0772325f. 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/LVL152203411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf46a14d5c84126c745223635c2587d60b55f6ae49a10137f1a3e2dbacae1b8de. 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/LVL152203410.
Kaķēns, kurš atteicās no jūrasskolas - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x644c0791134455e924d89a268d7a281d44c99faf759703308aeb5b5caaae8321. 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/LVL152203409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdf3eb999f000ae93478eab93b84587169561830e2c1b0c0485c978d96fa3f57. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/LVL152203392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72e2f1b80656d3bb9dc09c176695d023fe909fbd2111bcdd85549301246cb5b3. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/LVL152203391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6955d8218af7919ce56e0b81155d9c7cfb564d737bc36c4817ffccdb877cff24. 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/LVL152203390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ac040687ba967ce940118af75687711ae08113d2155b954967446fe6b6e0615. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/LVL152203394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe545dbb1c47b7d6e08a831e15892d39d5022c0dca29bb43b73709583b94c3687. 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/LVL152203396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2ab9a67b81cd2aad07332111f0b8d16a6a77a1a99ceecaa3550a6de52d99499. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/LVL152203408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc59bb7a294221805a6b39fc4602f807300d70ad73e572ee84ad3056f2605b26e. 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/LVL152203395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2795218eb012e0ec6ce39699731018e9053639a7959519f98f06ae409b563481. Chain 2 (Bitcoin): anchored in block 960155 (2026-07-29T22:13:32Z), 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/LVL152203407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe8249dca0e23007d2f9a81608eed1f33958499a0cbf252f94a6a807307acef0. Chain 2 (Bitcoin): anchored in block 960199 (2026-07-30T02:30:29Z), 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/LVL152203393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cdcf8083aaef9d624a2298e80440b8d88ee6ad38c0f6d7930c46773a571341d. 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/LVL152203406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fb471e9c0f053ebedab75c10ed8db4c48d354d6b4e52739843b777d1f2833e3. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), 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/LVL152203404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1439a980f1eae790fc032e661f764f4fb0c59c7578c7f3e9091ecca1007a0f13. 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/LVL152203403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x005903e13c23ca8067fd666b4baf2d9312d48a057cf0ea1e9bf9758d3bceac17. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/LVL152203397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75aa3962738142c371e4cf06bdf5b3d1cce2c3f67a497b94012cf32b6ee7342f. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/LVL152203402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe446f552961048d035206274399aea3480395756b5aaa8b6b343f5fa9e6a3b49. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/LVL152203401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa69b52a5cac4e87d8f2795f806e66de0dc1d2b870ed5e68a04f5fbc3ac109201. Chain 2 (Bitcoin): anchored in block 960198 (2026-07-30T02:21:55Z), 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/LVL152203400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c401c62cdea636aa78fccee30955700c87a8e32bb542d25074e6f4d2eb23e36. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/LVL152203399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c179ad7fa5bb9411276835d91806c4970a09a3af3feab14114319d1606afbbb. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/LVL152203398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c4cfd95bdc9ac3606e6c320d76098395b0d6ce8181982a51d536d7c26a3e6b3. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/QMFMF1500940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7333a023872148b0f09a66a62336e2513130376d9ceebb5a2fa4efd80d5136be. 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/QM4TW1582119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ee63ca14c18aa1b6a57e3c68b208045e594131930436b0f78032a62a4ef5b7c. 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/LVA100000208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec631df3b24c361a83c8e22901ff97ba8a9d6674305bb049552131a65caabb6c. 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/LVA100000212.