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 0x5a6b066ea679c6ec9bc9a259f27dbd5cb98855fe00fb2e6ba85d292bcea8d565. 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/f200a088-ba92-48b3-917f-c0370af09825.json and https://artists.proofprofile.net/proofs/artist/f200a088-ba92-48b3-917f-c0370af09825.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 0x46b5ca6847e9f3ce6391ba52885b9416577780d67f87d2394579bb06c2487b97. 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/AUHS01204782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb40d840f9d48dfb2b2107026766c2578d384dcaa3928509a79c5e7f0f30b5683. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/AUHS01204773.
Mein Gebet / Schritt Für Schritt (Like Incense/Sometimes By Step)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35bf17c8690e9a99e4d08404278fb5b58db1849842d7eb70d3e10eaad1765b6f. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T10:04:40Z), 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/AUHS01204775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6f756433cd312507c88888f5b31121f84e86f5965fd5e80e6a702255841b315. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/AUHS01204779.
Weil Du Mich Endlos Liebst (Unending Love)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c0e04bda5a1804c4b4f1c65e9c9d39710b2bf108f03aa8132dcb8fa02e058ea. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/AUHS01204780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fb7f537d85fd66dc73e71329c7e26e5c28b2db3b61307fa2fd8086488de4d00. 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/AUHS01204778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc19e4cc62c9fd81394fcab7a6433f47969903f0003f018acd7803a3b1a929402. Chain 2 (Bitcoin): anchored in block 958054 (2026-07-14T19:33:24Z), 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/AUHS01406721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0685fcd22027804376118b0a3d98d101b9f171506b8f5dd0195206f5877c634f. Chain 2 (Bitcoin): anchored in block 957544 (2026-07-11T09:08:48Z), 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/AUHS01608520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2d9f158f4ac5ef92e98945f9969060d5ab352f374438d3e1ce573751241ccf4. 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/AUHS01608521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8e6b05965e4e13fc7659c4ee32850b470f83f0fd25d1dae7c1457294cc422b5. 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/AUHS01608522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x262d00aece12a268def93c6bf26be6d8daa5c065e645c3d8079f7b422ae6b90a. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/AUHS01608524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf97a171a7bc2ec5fa720f2f256759183931540f168fae69689eec1b8d515be6d. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/AUHS01608515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b237685524dbc6b111efc80072edd26eb3882f9ed645ce5d06dff153831cf11. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T05:02:52Z), 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/AUHS01608818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeac68c15b9054f49e43b1ab7afe23e1c17bbeec25649b6c27c295426f9708084. 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/AUHS01608821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacf82c3e37f0cd0a7b2b7fcbc1809dbaca0f207b44dd46d205e327ac7d616e88. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/AUHS01608824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a712027ab754ebbb6a74dadae2996943e23e918dd44615a9efa5bdc83905848. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/AUHS01810955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bfea18eaf88a60a7e7f5afd98d97798bf75240070f855119d4e78d4edac257c. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T04:30:31Z), 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/AUHS01810957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7be8a3c98614db634e69ba0c00dfa1c0934341bd0d9e8d3abed9c621cc3d8ff0. 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/AUHS01810958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3de60e47c562fa5ee28b572d808342f4ca964a696ef7772f3facd5a99b0a3d13. Chain 2 (Bitcoin): anchored in block 957544 (2026-07-11T09:08:48Z), 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/AUHS01810959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65b24f9f39a4bf791374e8b8d108cf74d81f20beb57173f9e8763774abcea170. 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/AUHS02013243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9eed4594d35212a35f2e8fe1fdf4d7937cd0b47779d1ca2d856cd36c7a07621a. 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/AUHS02114236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2e47c66107e182f780d484281948b290a709cea755c7a0ade9f3b03deed69c0. 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/AUHS02114237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb64888a4f0f5125751e1d2d5acf3b27775e1fe64a9065c7a2ebf35903c98d08e. 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/AUHS02114240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x957dd2ef02bfcbb7f5ccf3658d091fbaeecb933feaac8d114e08eab16a59acce. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/AUHS02114241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3754f44ec574c57abb5f945900c9d264f8d9b0157a4de0ab07c30978608271bc. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/AUHS02114242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44de08ccc5fedf8ac04e9ff34e980168caeed2ef60f37ea548b1c7480afc6667. 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/AUHS02114574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x689bcc4fc783a2bd88238ac8cc2fba31472957ee51f605d1aaa546e2467a1d2c. 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/AUHS02114896.