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 0x55abc1c68a0edef27ded42827ef9f6d54c345b194e7771a4828f39580e08c943. 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/02f5add8-593c-4c1c-88f5-b637ae121dc9.json and https://artists.proofprofile.net/proofs/artist/02f5add8-593c-4c1c-88f5-b637ae121dc9.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 0xd10e9d1a66b98a191e79d43d2459e8a4cda7bce7e14baec638c20e99eb0f5c61. 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/DEVH21800397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d6df1b07176dd521d03a16df68c411ffafcbc230c5584da9b249e92c605ed87. 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/ES23A2116702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdf198a63c0b72a2ca0e264261e03accad335cf3316d7c7e19905076318a0929. 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/ES23A2116705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bc36ec72c052c02a47ee684d67a5ef68e673baf77e8f4497a76a490779ac16b. 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/ES23A2116704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf827b14c997eeac8ed07a8f0304c44ad62b379856240475d19de2278373e607. 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/ES23A2116706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x695c2d68c21a016b02343f583f5198fa85e6558554232646ebec68789135a48b. 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/ES23A2116703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96b7580b58f4811e6526c6cad2e24234f21914d9b33c541c55d14ca6a4857791. 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/ES23A2116707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22f607aa6ed16deb0cda5c46e90b9a94914e5469e5e80ff3556e9e3e3dce7b66. 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/ES23A2116709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe95bddbda249acf58a37a6e6e1cffa08902328bb9635b8fd56e272ce7fc1d55f. 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/ES23A2116701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95fe3ec32646a25b4f79c46578fde32b4770c306332cc1a13b0af6df55484439. 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/ES23A2116710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec719bd99ea34c1cef5b43a795ef1a6cf1b436e8797e5db697a6a346b0f9c86b. 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/ES23A2116711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23a12b8f7b981f2f066d69136b7c3caa68366d64870f6e074754467fb05adabb. 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/ES23A2116712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09e4548dc611913eb201ca66bc2985ea377de36b30376ad313c5e5b50bcb6ded. 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/SE5BU1955247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ae8b8293e2fcaacc59002cd9d959fba1cac493e3f973ca7855cd9d2d2667865. 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/ES23A2116714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0a1fe72a57e1114f8a63d3f48abab842307b5f6be7056c156b6d468de05e2b2. 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/GBJX32266205.
Skateboarding Is Not A Crime (Marcelo Pantani Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28475275e7b3939a737e1cfe5756bb95ddff9873229eda254ca1fc27398d72ff. 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/DEVH21800530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f9ff34c1ac0b3623057e1573cf738fc3b46bd7c55a5fd924a2f571e4d6f7ec6. 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/ESUM72302430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x136e434ee99490ddf0c638adb8c470dd6a46d9684b5c92d327fa43ee4850b206. 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/ESUM72302431.
El Lao De La Pena_Mainline Magic Orchestra_Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdda48cf8491233917662b11f57993d69087740b0beca876dcb4b47f01031217f. 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/ESUM72302435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bba766dd37f325340a5a46a80271dd6b9818f925f55b70c0f983684781c25f8. 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/ESUM72302437.
Péiname Juana_La Vida de Jaime & Droxo_Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc7b64a1f42ee44db1e31ecbc666190856bff59989e8aa14f737c2dcf7e7a077. 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/ESUM72302446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ab293a4bbb54bbe1ea74e2fb6eeaaf0e5dc8eb32752d79f32ca3a7405fe0801. 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/ESUM72302438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee0751bd0c8a7038e24dc24018ed408f499afbd31074e3d9e861b904a75d167b. 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/ESUM72302443.