Mier might refer to one of the following: Places Mier, Asturias, parish in northern Spain Ciudad Mier, city and municipality in northern Mexico Mier Expedition, from the Republic of Texas into Mex
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 0xccaae13ed88cb1e2f018516edcf1c4a1567d7a773e49287fd43998efef76afdd. Chain 2 (Bitcoin): anchored in block 953633 (2026-06-14T12:47:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/34d58081-950d-461a-9048-2f222496a917.json and https://artists.proofprofile.net/proofs/artist/34d58081-950d-461a-9048-2f222496a917.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 0xe900b63bcaf096080cbfe4fc966fc6d36f3dd4905e8f42c310b3d31d6fbf05ca. 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/GBKQU1665144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x839f9ad07200b091002349cc3f25d40cae517939d9fa64b11450ae8a0919a462. 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/GBKQU1665145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a6ed7d151f893ccf3195709c0b63e1e60a92e984d13543f60da8c34882dc644. 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/GBKQU1665146.
Midnight Flight - Vicent Ballester Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedaded42beefb21dfce8a3ff60451bdc3886a3319bb0f6adb7c28cde2043dde4. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/GBKQU1665147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c61562f7cef90907976c505eda9a06554f7cf1b93142037c722475051e2870f. Chain 2 (Bitcoin): anchored in block 960300 (2026-07-30T19:42:40Z), 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/NLYK92100068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f017eea1d8b5d0cbf2870b459fb3db2cde863cbe9199a6f0325c0889752a781. 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/GBKQU2186827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9d4bdfea3600df3c43250f4e761dcee43e746d4fca9048d903b725b40dcacf0. 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/GBKQU2186828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ff3cc2f36688e902d6c35e9b21ed9f3f053320b502c2ae3c650adb47a2ecbe1. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/GB8KE2152891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x214ca97efa25ccb0f23dfd4841574c00c3b6a3be708a2f5c33588da1e6b7f102. 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/GBKQU2132243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc45f8cb38d98091d8f9f70779863054f737ebaf8a09fdb06d52e10726aff8b16. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/GBKQU2137689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x750c2ad21864043104cc007794a50c076fa5ea5c30491f61a745574119373b19. 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/GBKQU2105046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a198fd0189aad2c97164d32059967b418f1772fab6b5830c8965764fea0c8ab. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/QZ5FN2121219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe227e3ac907442903c52aefaf29a670f5caa733babe4b5857c5e5a20fda664b4. 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/GBLV62035206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd71ae9e692056bb0c91b2c31e06519cad175048dfaf724e4d4793bd8a7f492a5. Chain 2 (Bitcoin): anchored in block 960303 (2026-07-30T20:11:13Z), 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/US83Z2037947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c0d4987ff80ed03608d8ee765de4d5721981288070c3e16a79e931534c14b6a. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/ES50A2000384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaed96bb2ad3c738ca2368a70729c3292899994221b123e45a0a7464632bfe6b9. 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/GBKQU2051290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a0272cfcadd1cd68f10834fba9bd43c479b46ce3695ae96e9a562160f40e782. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/GBKQU1723795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdca795199034667ce597d679aa6d4b2e853877b3dbfa1369355756639b805fea. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/GBKQU1723796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41a31555f695019dfd3f2ab82bcbc8a5895f8a15b4e80776df984afdc3cff3c4. 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/GBKQU1723797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd257374e34c075b19b510630ad827d5ebc31fb6da9203b24746cdbc7874d4ad2. 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/GBKQU1659885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9da0b503e44aa1b8f767d2c7a8ed515a78eae0f225cb2a32f4080362b99705f5. 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/US83Z1638455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3ebee5d3c0d863005522d7479f3c3521654a9d51c8f6115be885cb2e1140acc. 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/GBLV61518372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf578921481d862a759c10ba8f08ada7565ad9292ceaa3a5341baec86e0e16b33. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/GBENT1330273.