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 0x92237be976c2134023d1c0491c51775431b48bf79dc18e6b46167a89c68d9893. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/35a7072f-9f08-407c-8d54-90d46f3d675b.json and https://artists.proofprofile.net/proofs/artist/35a7072f-9f08-407c-8d54-90d46f3d675b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Musical Tenors - Older but Not Wiser Tour (Live)
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 0x475ec2ae89587893598e5b3a5f68bf10c32427e5889209d349a88d204b99f51a. 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/ATM891902924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x993d584b41ef8197f417413ce2772fa6963f6994d51a7d60cd1afea480279538. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/ATM891902925.
Auf der Strasse, mein Schatz wo du lebst (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x500a4715ebb1f2f81d57c83e0480f26dfb04a62908509d10adb2d9bebf338c3c. 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/ATM891902926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92a82491bdf0ec2f49567a84e981ba528c267a70ef1c34d5ec9b4722f225021a. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/ATM891902941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb3068f0d343a10e98ca46f1d8c5aeb88c2a9f393b601ab0f85a51429edd6db8. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/ATM891902928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5218e56f8d4f50b6a6380962a53c116d6fea08838da2c52e0660035bcb3e838d. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/ATM891902942.
Am Ende bleiben Tränen (Tu Cosa Fai Stasera) [Live]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd0aa2b8c177c27b0f2ee4fab67783aac7035d14c2ad8ae84515dbe9bc17138d. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/ATM891902943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5107b3be694ed7ade21d6aeee5e00bc23d1e2ab46878f4ae9fd611fb59c88b7. 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/ATM891902930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fe7627c200057ab647a903cb065d40d19ed9b48031463f5e423826beba22ae2. Chain 2 (Bitcoin): anchored in block 957026 (2026-07-07T11:02:43Z), 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/ATM891902944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x100189f3b4957feb3fc19946cc0c777b049e1f1970f2ea9a8eed48fecf83c34f. 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/ATM891902931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x624dd741ad50dad03715cb8fd7c3488cdb1015fc1f46771b746338c7b95efa15. 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/ATM891902932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7703a3d44b8a1a373a68473c102067266810c900f947b594b49196fffbd9d6a5. 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/ATM891902933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x218152932c43b355551883f52d22af2f55e055d1f2f1cebe088e5a526c659567. 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/ATM891902947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12a9ca9bc90d14a53a4b5320aa411f2c69cd4ed4f97d71d0eb70e099b8556dc8. 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/ATM891902948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c7268780dad5609df3c93a90f4a88c1e9ac7c6c517d2d5b30fa84f48f96425d. 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/ATM891902949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7f42ce6bc4b3f7be84c3dc2019ebce19e367cb38cf9e0e4772cfa9034689509. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/ATM891902936.
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 0xbbec678878c4d2cbd0d510ccbae51d2e9918caf18006ef6a8842588eb034c908. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), 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/ATM891902923.
Who Wants to Live Forever / The Show Must Go On (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91f80ed917dee9682a971ac4eddaf4eb533c0ec4d4c31a937ac4a7ce7d4133c9. 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/ATM891902937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3883a8f6415f31b65847422058a7e0d59aec141dcc406107092b5f54ca4794c8. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/ATM891902938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cdda340f278007ceadb21a6811009707f6f9f4d237bb23ff7cffa9eb327aa97. Chain 2 (Bitcoin): anchored in block 960200 (2026-07-30T02:37:10Z), 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/ATM891902939.
The Impossible Dream / Man of La Mancha (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b2861e2ff2b2ba4c0275b6a215cab1d25a0d150f3aee65ee36a47021e6e6fa8. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/ATM891902927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbd03c5be6643975e6fc87e5a69b6f1d4d102a228e909ab54acbfa8e351e0f3e. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/ATM891902929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5007eee2723afa0c1d50855559d8accf8da6bbc329df994c83f814dcf19d42e1. Chain 2 (Bitcoin): anchored in block 960198 (2026-07-30T02:21:55Z), 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/ATM891902934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d7b89e3e93fca36ca1aecea176bca4bf05cedae5f30e8e8a7f511fe65984401. 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/ATM891902935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c7d38f245f7efdff8c4d51a1117348a7b06da63144c466f633a2d708e9fc17a. 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/ATM891902950.