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 0xb2f609d2c4c4741acde40b78c28ded5c89efc9b776e6a6d4fc3fc9b5b5ad7f1f. 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/b7128f3f-ea5d-4614-98ba-97cb51446f4c.json and https://artists.proofprofile.net/proofs/artist/b7128f3f-ea5d-4614-98ba-97cb51446f4c.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 0x4af8becfb375e07a8ea7c7637e954771c311253c9da78fc400ee4c63827e3f9c. 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/ITB841200574.
Melodias Del Corazon, Vol. 2 (The Best Of Relax Flute)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40e7a3987250ceefb31c525d913821170bf40b092746e5d0ae2ab6085ab4fc85. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/ITB841200553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25bc4da202554404e4fc778563011b6092c98acac49a152fa014b72f3ec57113. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ITB841200558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23088b6ea81ec8e0852b8c7dc2b267e3035345d8e28f7ab39bb27a777c7502f2. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ITB841200469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7ca78ddc1973ddb3015573fdc299a85003e1155f2e12ad9ac3c03478331fc84. 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/ITB841200475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4361ae9404b4158fa49e25e6f224d4219814ec07c638c1a5302a2da65b187c2e. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ITB841200477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91e3bf58b195ce4d7566855afedd1ccb31c765f607d3e80fa93d2b257099c58d. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ITB841200478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf06a9a8301b47975bb4eae59372077d0af4cf3752845d079c228732615d84624. 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/ITB841200481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x416caff1fceba2f2843edf5babdb50a12f2d33cb3886fd27f99d7bd97e1975be. 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/ITB841200418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e5f65c64a15078be0c593527abb719c0ca6a5c1a613b48afcde23a750517879. 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/ITB841200424.
A New Land (Best Collection Of Relaxing Songs)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4754cb33cbfab28bfffe1ebb0c2ee786db67939cf497d498c865dbd4e7bafa96. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ITB841300260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x086a5c487d79bc3f4484357f71c13810606d2b1af2f012c3c4e5224a6a1098be. 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/ITB841300268.
Earth Spirits (The Best Collection of Relaxing Melodies)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf287db939c6a49ac0efe50772167fec1a19082cf5190e7763f05fb22fe294470. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ITB841300255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f6211e10341583f58b877a0e2379c4e2c0266c4f18c7ce3677f3e1ab42f6491. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ITB841300251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a1aade49c3b79010f0fb707ce8575802b48bd8405e79e85c3a84f9e21c90aae. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ITB841300265.
The Path of Life (The Best Panflute Collection)
Native Of The Andes (The Best Of Traditional)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1fc52cd4b8ebe9b405e848d4b649005d7076353b878b82978fb1a8ab56bea2c. 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/ITB841200527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20d4877b7d471710cd4f86c82b77e1c843df4ff294ad6e2096ec9a32461c1945. 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/ITB841200530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefd0755ae13e226ac24c7ae8e3c7b9d3bc0d50e3e073055a5681a5332b89d8dc. 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/ITB841200538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaebffaf609e1a68800baa4752044b98b238115c62907ccf323fe00067a498f31. 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/ITB841200539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91fd53a93ddb04b8c840d2a91436990a0a4ad1a14d3cefd83933b208435ac4ed. 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/ITB841200540.
Melodias Del Corazon, Vol. 1 (The Best Of Relax Flute)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2ccaf042a72053adbad8924fb8c92fa399d1796f7a0d6121ddfc23b6cffd692. 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/ITB841200445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x933fba93542ca2bc652e5294e4b982c36d89d72f1024403688b3075e0e5aa01e. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ITB841300249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x931e44772cf3b4ce3c7efa1bfc473036b043331b0e3193dd5dfd87e0571ec110. 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/ITB841300262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe982fe6b3d6f13bd301cb3e3aa93b78809c85902797ccb32f1d00855aa9909fb. 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/ITB841300270.
Echoes of the Moon (The Best Of Native Melodies)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6d53038a58e483028b9f86c8bece5c35447d0b4ecb63b24772da6d291cfb78b. 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/ITB841300250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35bc8c36e3ed862b066e35e957f235c0181db1a910b7b8a64e69d4811f296ba9. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/ITB841100137.
Nature Relax (Traditional Songs for Meditation)