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 0x8904af0a0d66502faab2608d85c3189dd051bfa8c12c64260c4020eff632872f. 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/c18e1863-2bac-474f-b44e-47e974fd36c0.json and https://artists.proofprofile.net/proofs/artist/c18e1863-2bac-474f-b44e-47e974fd36c0.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 0xb6f3bfa0e4c250e5e437fa4462ed4bd8a1dfd19bb17d6057271072ca232333c4. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ARQ8R2300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7eb37390480ec4243d51c4265a911b96ae1929cc02e473675326c60329439c9b. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ARC082300049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed7da0bb6537012383b7e5df8cebd8c3135de3fe711f0e55d48abff788de17f3. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ARQ8R2300016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d290e19311925712991cb37cdd6157b29630012cb5eaa22a9d1b0b6b8b65483. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ARQ8R2300017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f20cda25eb16988847ca395b12aed46ba6989bd76fb9749e5ff0d3885aa169d. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ARQ8R2300018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x271695831576e2e18195e46780416f79a986c1f95a2bf0589ee9ca03b8bb7786. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ARQ8R2300019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb06c5a7212d6eee1d6a525fe2eefb7a2150a32e1f5f89eaa4aeea68f86b5fc97. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ARQ8R2300020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cddbdc2f818ce534d664c0127a10afe93304b6aa26bf98dfe7713e9e86340dd. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/ARQ8R2300009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f2a09dce56bb4af14b412380e9a64375dd229dc902075216946b1f8c2327f57. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/ARQ8R2300010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15e9d6bf1ef78c8fac33827859da41141cd0862d5462e5092d6424915f7d04dd. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/ARQ8R2300011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6921f449811c6da35e2d790f0411205943053dbaaa579fe61712f5f4735f6bc. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/ARQ8R2300012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13910523c1a4de6a62e9e097759efc6fec9f069cf59a4123077b3b0c114fe911. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ARQ8R2300013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02662a35b4987fc9a1f8941ecf8f267fcd658485e5a8790012181d28216a1fbf. 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/ARQ8R2300014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x463d623b940492b87d5e96a72ef3ae4d332204d764a96ea71382e7cff152ea27. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/UYB282464001.
FLOR ALVAREZ | DJ TAO Turreo Sessions #23
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20fb44ebeb4770259e2e9238e609c2cf0081d1231e7bd467628385cf6d140014. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/CLAA22400124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafb208ea9d8ab3dfe0837909c41c8b64ced26d434d1409708e231a9caf08ecd0. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/UYM122400101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa51d8beefb5c8c565735c7d576c06c4d57abe12f50e123060c4dba0fb6dd4d9d. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/CLAA22400286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a2dc86e9a24bf61f41798fc4fb33580b881c69141a7102d903012f7d0b502e8. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ARAE52500038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23a9c912dfbdecc5661d1e54820463a7a9a078382ebd4113a2f089fbf23a0df0. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GXBAV2515097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88a05c52ccc8d1992bcc3266f9325cbc05b10d731ad64e12960a6aa37a3f9233. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZW9L2430224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4914e5a2fe84ccdceac0dbb2e1f3b948295857b6f3d782e4219ef94bca1e4f07. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/UYM122401087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7ce2bf0e08aa90cd4267fc34ef6f7456315058eaf68559840ea4d3278d7e58a. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/AEA3A2449053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x848037ac51608803907c674a777ec5319102c4068bb4fac75fa0c26eebdefdcf. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ARF102400208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1213369208c4733c76868f518e3af70120ef746c24f564bebb5a0d95624d7ea. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ARQ8R2400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cc0a3370c36a489a685734723f3a68009ded6d3c376deda276d15cdab83b501. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ARQ8R2400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcafc05043944e124d2dc7e5f71c16d5db685768ea38e9ca59506b44e5a8922e7. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ARQ8R2400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cd700ca287eca4fc05829e24caf125d0c8cc647d6e6b14b09ef3a62d5896c10. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/UYY112400027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6734f155ead5675981267b9b1a275f903338230a08c171b9ef3e4047f858714f. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ARC082400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf9b53f7744550d0ed6326dce829f57902726440dc1ea04b31e193690cb19b8d. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/SGW502443487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x462e43ef9e043d3c235d8ed4b56d562ab217c4a02787e20409e4b0476123cf13. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ARP7V2400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc71a19272dbb9ac4b06426053366a17a3b8a4fabe1c81d7eaa00ff03aaa3e07. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/ARQ8R2300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa222ab199785b68279ced3aa5025b03981d152b3a1fc4872731ca97063cd1f7b. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/ARQ8R2300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46913122239e6976caaa44be8c47194a27657a2fd26ea459b20b1c31b7ea4162. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/ARQ8R2200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4a63d1d5b0a2d97d50b4e45e4a9d6b31a0f2b28c1c05c984d32c538a1dca638. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USL4Q2260572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef0c68578090dd9c7ae723db07125d5900d5d0ba1fa77ea39fd69460a23b67df. 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/USL4Q2202606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x462e43ef9e043d3c235d8ed4b56d562ab217c4a02787e20409e4b0476123cf13. 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/ARP7V2400001.