Monrose was a German pop girl group, first established in November 2006. Formed on the fifth installment of the German adaption of the international television talent show Popstars, the trio consisted
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 0xa34917f960341e2fd5a6f6c451017f2ebcec6a1a2f7dec52bc60deeded5267ba. 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/1aeb6ce2-6894-4d83-b0eb-48a9ef27ee5a.json and https://artists.proofprofile.net/proofs/artist/1aeb6ce2-6894-4d83-b0eb-48a9ef27ee5a.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 0x5e94d88255279ed71b79bf8ed6bc0cd213b90eeada33022408fb9280d92e2e93. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T21:34:21Z), 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/DEA620600611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2d8317bddc3f142aed428079172fc67ba45a54ace987af9eb6a9e4c4c6fa38e. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/DEA620600752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d7eab0b4c720c9e7ed12b04656842098e2bca8120a7379e4d3db15366a82889. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/DEA620600721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a04c303cca32b96e47c201baa5be8bb079c4c309b28d1e2c6d307dcae2ee7c2. Chain 2 (Bitcoin): anchored in block 959069 (2026-07-21T22:32:59Z), 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/DEA620600719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb498585942775805ba2bb2ec9eb62d4a5e44f96e2516bad73f18661eb1d7bfe9. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/DEA620600720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a32b5bbe6acdbd8b06cf28d76a2a5622610d0f46162e3e89ee30c9106424419. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/DEA620600723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x915f9a553d6b11c5d7e4a2edf465755176bae19e3c4e75bd8b276f97c5ca985a. 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/DEA620600753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53bc5f777913c4deaf7cb8fcdcff6bbdd530e5a74aeae5dce7bb4a18e1694ad1. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/DEA620600722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5867825c8009fc74a85c8e8d19ea904c4c2c78cf38fdf2d8a0706c5ee3a6d89e. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/DEA620700243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb4c824a7ee135d4bb3d5434c0974da33302bdc01703802337d2be902516119e. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), 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/DEA620700280.
Strictly Physical [East Europe Version Only]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2c4152d01c0dfadbd1f17337f7950ad73e1c0589c80ec702134dea939a533bc. 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/DEA620700466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5867825c8009fc74a85c8e8d19ea904c4c2c78cf38fdf2d8a0706c5ee3a6d89e. 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/DEA620700243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaa6e99f2bc0b591b35b2d8a5380b1bd07fc9baa10f7e41fe6189563e1f86907. 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/DEA620700467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f020edfa9d48fc7784f5a39e48d714185c83237609f5534f1abd3c830c26f10. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/DEA620700468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31a6412d1f9f33a127daf866836d3f5079c9c6131181cce9386fafdd8a8d9e67. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/DEA620700472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x326f8d6d3f991a789d2f9565d6233f574b6a5c87ed1d50bcce941893a46a646f. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/DEA620700473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9538b6f961a1baaf5cec457db36574a10f5c63c9dd00570b1b5a376abf468b97. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/DEA620700469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x307329eb53cd51eddd0cb5a3c563f550998ad0ebffd619805b52ac8a2a4dc2d1. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/DEA620700477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f020edfa9d48fc7784f5a39e48d714185c83237609f5534f1abd3c830c26f10. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/DEA620700468.
I Am [ITunes Deluxe-Version & PDF-Booklet]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaee1e050c3de1205a08bec7e5f52c1fa85c3b6a97c5db82c1a70df31ec8209e9. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T06:33:30Z), 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/DEA620800385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dec8806f9e5297e7f1b21423b6a2cb45f3a77cd9e55aec43cf2d63813ce4f5f. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/DEA621000293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe23aa2cb7b0d54532c37ee9d2409e3eeca31e8dfd9887646f914f88ac25ffe27. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/DEA621000299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68e6616329a1c19ed460d1c8e3cf1a198f8ee20e25c9f12451b9dc6cd6257d2c. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T09:11:53Z), 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/DEA621000300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x642b6ba582f09740671ae9e0b2687764f98cd3f9ddc793c6114ed5245abf1d8e. 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/DEA621000302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79200a07c25735dca8d92438482d1d8db6dba64633a5474620ea114a81ee6b8f. 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/USWD11055404.