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 0x20f83c34c4fe8edea9e792b7d0592cc425fa1ddefc829e954a8d5d21413f5c8c. 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/7965b24f-a793-4956-96a1-d756dc03e12b.json and https://artists.proofprofile.net/proofs/artist/7965b24f-a793-4956-96a1-d756dc03e12b.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 0xfb1553ceb9bdf19fc2fe68f8ec7090f7b35a8469216f70d1b50a7bc238aef83f. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:48:06Z), 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/USCGH1801651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb563e23e68e18a51764528c771cea58dacf437dbd10d4f2a3181f69e0a8adaf. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-20T00:17:24Z), 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/USUYG1369009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13d294d7fcdfb4beee6affa91a38df7f3b5faabea7445f0cf979ce0cc58a8de7. 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/US3DF2567086.
Kings And Queens feat. Lexico HT, Ch Gedeones, Eva Nova, Fanny Plaza, Tomi Perfetti, Mr Yeison, INDYFOR, DesXa, Ada Betsabé, H-SUFIA
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8874c8898943d3ef591b5ea505884d66970131fef9094c83a90a9caa61f59555. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZ2J21505281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2774772cf4472a8f39c7972e6a99ddff1638dd795c4df130dedc39d8fd24bacb. 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/QM6N22294289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaeb48b3cdf315e64a0c9513019c7d09a70c994548823faaa4d44f4ed82b41ad2. 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/QZHN72074292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83fc07b8f0cef0a8a0e4cb53b68a59cc00d246bbd0b13b4b61609c39bf277a3b. 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/QM4TX2459141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5504d596717fd23b822d8b5e99ecd3490007e6e9b669499c1a8aa770df2b6f9b. 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/QMTND2000163.
Indestructible (Remix) ft. Anmily Brown, Oveja Cosmica, Ada Betsabe
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5da6ab192ca9db537c24cb8f5262e942ec0ee765e5c47ebc9c168f2a32b3eaf. 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/QZ2J21505676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72819e3ae070a79b9244c18790e29866330b7ac0f096abd7ef27a23d9a0123cb. 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/USLZJ2090870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dc6a30ad58e2980e341bcb17301ea3a75a03186189285e327bb44d6e41f7ff4. 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/USDY41660936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb4e18b2b8c1a8ffbd06ac648a13dbe03d40997f7c0a750efbd0a5b090c2e5ca. 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/USDY41660937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b8bc6a6c904eafaac866eb51f5e6a34a56cb598c7cb58f2055bfc1a26f7d644. 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/QMFME1972917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cf88a802878f68f9ca48d88776e34ecf52f3055457d08d9c93821c6b95d0644. 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/USHM82490485.