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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1442f06039ec8620becd327e8d4c79ed86b92a229f51a742a9bb5d07db3733d1. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). 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
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 956551 (2026-07-03T21:18:05Z), 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/FRZ028600540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25be0aed103c4f380f0fd25530660b00c7b9c2fdee1e85efae0ebcbf680d3701. Chain 2 (Bitcoin): anchored in block 958722 (2026-07-19T11:03:50Z), 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 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/FRZ028800090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88b9b94cc03739e690a34c347cb957f7cd3e35ab9ce057f4e5e7f5ba365d4839. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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 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.
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 (2026-07-15T14:32:39Z), 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/FRZ029000530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb27e787ba13bb9557be011ac0e7c74a79a6272b2473d35364309c07b27aafc92. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/FRZ029000580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x242891d7965525cf2063a636894294de66736db69f7dfc7668178176cb86a544. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T10:53:05Z), 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/FRZ029000510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97ee3d93bf9b1b3b684626bed531fa106354b1a799af5b3ec5b746b14d8eb574. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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 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 956639 (2026-07-04T11:19:20Z), 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/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 958157 (2026-07-15T14:55:07Z), 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/FRZ028800150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcfa700136482c494d352ee3a1095e88f6eab6092db554803640f974a610a749. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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 0x89d64466c0646240ca3104c5ccc2241562eb8b44d637eaa03b732929d89daa21. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/FRZ029201780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6cf6584ea94534911ce64f40f2846138a7ffec781df4b54a27f5c850984db78. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T21:10:24Z), 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 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 957124 (2026-07-08T03:53:27Z), 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/FRZ029000550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc29b421b9ba8c56ad138533717bbf72b7d3ed5018c150a6c6aaa919188416a37. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FRZ028600630.
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 956351 (2026-07-02T11:38:34Z), 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/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 956312 (2026-07-02T05:09:12Z), 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/GBBCK7700412.