Niagara may refer to: Geography Niagara Falls and nearby places In both the United States and Canada Niagara Falls, the famous waterfalls in the Niagara River Niagara River, part of the U.S.–Canada b
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 0x1442f06039ec8620becd327e8d4c79ed86b92a229f51a742a9bb5d07db3733d1. 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/43f0bc21-1c03-4531-8d88-69751344bc19.json and https://artists.proofprofile.net/proofs/artist/43f0bc21-1c03-4531-8d88-69751344bc19.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 0x8040eeb6c640920267f8b95dd69efa634ba83614074a1a8c686ab3ebe4e21fa1. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/FRZ028600530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7da0691ea81e5646308e443ebd3043d067ef592509ecac413a8136d8f1a8eec. 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/FRZ028600540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25be0aed103c4f380f0fd25530660b00c7b9c2fdee1e85efae0ebcbf680d3701. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/FRZ028600550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab82ac3ae0b57650df937c46b35e8c0b96819e975dff19d9f4796841b8829435. Chain 2 (Bitcoin): anchored in block 958720 (2026-07-19T10:53:46Z), 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/FRZ028501240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fe8ab6751a7465a59a973f34714bb1fc3d04f71634580daaa0e0fe90535c825. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/FRZ028600700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cfea07da6078902e6cd127076b9c5239dd00a8b973f8146a18ec6b0b4470c75. Chain 2 (Bitcoin): anchored in block 958682 (2026-07-19T06:17:12Z), 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/FRZ028800090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88b9b94cc03739e690a34c347cb957f7cd3e35ab9ce057f4e5e7f5ba365d4839. 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/FRZ028800080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdfeed5fc788cda994aa2ae98a615daad7935620e2d83a74a6fde09c8640f345. Chain 2 (Bitcoin): anchored in block 959052 (2026-07-21T19:50:27Z), 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/FRZ028800140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3b133779ba685f8890b3026d56988c70d36968f27f33216cc65b8807481dc3b. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/FRZ028800160.
Flammes De L'Enfer - Remix Version Longue
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e248851b119b022ffb76e720f5c1f9067834b662a13d77fd0d0ef50aa2258de. 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/FRZ038800830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08d21cd0c63060730a4c4bfe4be154ec45885feaf968174a6eb799b372edd699. 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/FRZ029002020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb03643a867c814bdd1cafc990de7ec439767f97d70fc66e2bc2e25a70d14408. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T12:03:04Z), 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/FRZ029000530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb27e787ba13bb9557be011ac0e7c74a79a6272b2473d35364309c07b27aafc92. 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/FRZ029000580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x242891d7965525cf2063a636894294de66736db69f7dfc7668178176cb86a544. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/FRZ029000510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97ee3d93bf9b1b3b684626bed531fa106354b1a799af5b3ec5b746b14d8eb574. 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/FRZ029000540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd88714f2bf5d2b3306508575e0d56f5272ff892a70bc8312ed2418bc00da7b15. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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/FRZ029000390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dabe01690417f4cdf929017bed85afd84c476ea2930b4f7ef6ec3a399aacf5e. 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/FRZ029201800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b1672bf4eedbad7a367bb2cd986fd0ca717caf48f759124aa36a6de6d65b1b3. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-21T23:41:40Z), 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/FRZ029201820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb51fc30a8a460c6d3b7b5fe53d723aa2ff626c2e621cfa7fcd4bfa14f64a8c5. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/FRZ029201450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf80d7f4b86ba08d1a081b9b131c89701a30f3573f0bc8a2dbc974d583a077267. 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/FRZ029201960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x428f9f3c38b81ec559e903feb5aaccd2703674b3a1b9dc1d7f5e9f7b1905102a. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/FRZ028800060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6cf6584ea94534911ce64f40f2846138a7ffec781df4b54a27f5c850984db78. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T12:03:04Z), 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/FRZ028800150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcfa700136482c494d352ee3a1095e88f6eab6092db554803640f974a610a749. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/FRZ028800100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ab46c5d780f5101577af79291ed0578d74caae4d4e7273ad904e5164c6e15a2. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T18:47:29Z), 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/FRZ029201430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x065b213ae1d6c47a2a5de31eb193b54430493c19240de4d4207e284f206788fa. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/FRZ029201790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89d64466c0646240ca3104c5ccc2241562eb8b44d637eaa03b732929d89daa21. 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/FRZ029201780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6cf6584ea94534911ce64f40f2846138a7ffec781df4b54a27f5c850984db78. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T19:26:13Z), 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/FRZ028800150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa0fc378c1830c8dcece0391a9911f911bcabd539c3ed5a95a5485029abb632f. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/FRUM71700815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ab46c5d780f5101577af79291ed0578d74caae4d4e7273ad904e5164c6e15a2. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/FRZ029201430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcefaa6424cd3b10ce4912e6c04e33bf9ec348615274fe11609008e5d72cc973d. 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/FRZ028600460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4107d3db168832be278932df2c3863c7f5130b86562f40e08b3c5746d07c046a. 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/FRZ029000380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1ec85c27e93ffd22ad477a3307a41354d63b209f4fd9119143020b9ad910593. 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/FRZ029000550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc29b421b9ba8c56ad138533717bbf72b7d3ed5018c150a6c6aaa919188416a37. 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/FRZ028600630.
Mediterranean Flavour - Summer Songs From Southern Europe
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc29b421b9ba8c56ad138533717bbf72b7d3ed5018c150a6c6aaa919188416a37. 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/FRZ028600630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4107d3db168832be278932df2c3863c7f5130b86562f40e08b3c5746d07c046a. 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/FRZ029000380.
Soul Jazz Records presents DEUTSCHE ELEKTRONISCHE MUSIK 2: Experimental German Rock And Electronic Music 1971-83
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8516ee4a123c45c1cbd2a8140c0d5cc148bb595efcf3d690bc00a635fb8b4b2d. 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/GBBCK7700412.