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 0xf73d889a97df97febfb620054b183b09e540ff6c0269859400f807c76a484937. 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/f3f023fe-47c5-46c1-8dec-33633833c928.json and https://artists.proofprofile.net/proofs/artist/f3f023fe-47c5-46c1-8dec-33633833c928.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 0xd7b1667f52226bd3ee9ccce5c559ad4a80ed084bd0c952c88e2de1121cd79065. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/CA5KR2372472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedb44f975e8a4837ff486bd6e6ee3535e5c84bb53005038a33dbb10507cf62cc. 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/GX8KD2347361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadc8b905b325e0221b0ad34dbe741ecd97e70b29ac54485c237319341ebc8d5b. 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/QZMHP2087182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x014f348960479f8ed65662d4fef8b92b68cb0385705f71e5d4ab617b0495027d. 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/CA5KR2400868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d20a1ed81ab0c230283541356bd072507e0f28e2c2c51683cc461007a8faa06. 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/QZTBF2396421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55ba57a9ffca03d6ee0d8e8e5968eb9f1b9d410f6fdd62be0a193ee48642ef75. 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/GB2LD2310055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcde0c09ae1575fd3af65eb82ce841bb68b8ce7d953e1997422d011525e772077. 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/CA6D22200673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62addad442495e3901c0ec49c91acfc8e9ef63c02af73e37632139cfa81e587e. 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/QMBZ92247795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb284e8be31264f8d19c79951d082299e4ebb4b3e34c0f9a809b2bdf927904227. 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/GBEWA2201263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd894b96700ed3e88144f5b9bbc4528885935817b8de1619c2553bfe0fd210402. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T05:30:15Z), 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/GBEWA2106801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec16141eab3b3025dbc08e56dd341725dbfd0f958782f581435bba4a0e12d082. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/GB2LD2110386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45978cdd66c4f43df7499b4df05c2a31cedb9babf4972936f63262ae628605c6. 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/QZHCR2100160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8dfad341f91618406b599a86c3307a7ee516a40e01f7666f6013c4981ba6590. 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/GBEWA2103480.
old friends (dreamr & Catchphrase Remix) - dreamr., Catchphrase Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bd6cd2c4cd75458bbc6497ac1048a61b85599d5dec2a8a4d58fd6fc698fa4ed. 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/QZMHL2041224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa328e680a917385109adbb1fe499b7aeaa5b72c06d3439230f6300f2b023e404. 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/USA2P2115135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc26f05f2665832e9756ca50726fd7f77f946818c168b5f848122bff94a89aa26. 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/QM4TX2150125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa29389ddca2b4e59956f26a3e447c2f787ebd52bacdd30f9b8beadf41cd5515c. 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/GB2LD2110050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7705b44ff5c8d868334b0303cffafe41aceb2978f49e4cb910a89d4cc975de86. 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/CA6D22000407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x106d5e265d4ef185404077f8f1800d664e490c7c536da876e640b0f7d7e60d84. 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/USA2P2031728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89c7c2a88e52037b8227db2422a7c40ea562bbe2781350f77e2f3297a2934773. 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/ATEK02009082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37baa26a9ca597dcd554e0581eddf688cf20a4a4d483461fb0eb75c286317946. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-21T17:14:02Z), 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/ATEK02007075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc48a48ecf44c6d24afabf590508b12ef98a83e585214ff09fab51137c464c3c5. 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/GBEWA1907330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c08d800a3f9f21dae1930b6dc69fa3c2e494aa0e9a1fd54a3eaa9c0a31d0db5. 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/GBKPL2000416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7b1667f52226bd3ee9ccce5c559ad4a80ed084bd0c952c88e2de1121cd79065. 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/CA5KR2372472.