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 0xdbbe652cad869dadd774dcef2b4bbbb988111be1f880a48e5248a9f21691ea16. 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/e9b148e2-7d18-4d57-95a1-ab1361ea9ea7.json and https://artists.proofprofile.net/proofs/artist/e9b148e2-7d18-4d57-95a1-ab1361ea9ea7.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 0x69b9f59968dc8810435fcde8498245f7c6b7706a6aef112d9769a4c7734c8daa. 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/BK4DA2215241.
Sácalo del Clan (feat. Yolo Aventuras, CRACKS, The Nino, Mr StivenTC & El Brilla)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8960e74eede6863e2832aa9e9c4e4ef7d4ab423c6104642b1e01f5ca6b8b3f84. 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/BK4DA2215242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bf7685b578a415d604f463c5e713cc250abcdbf609254208d1062b709901905. 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/BK4DA2215240.
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 0xffe92e2e033d1a9a14fdc27b41ce0f2f7111946ada24788878b19d5ae787301f. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/BK4DA2215243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3731c2ad1bebbd84304995fc5b75fda1cc4e2961711ac8aecbd3068737f32c54. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/BK4DA2215244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbeb92b97a52d57ed363f7c60a379de58515b6380012533756f152e92ea24e18. 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/BK4DA2215245.
Quién Es Ese Pokemón (feat. Mr StivenTC) - Deluxe
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8292f5d603f953507052046f7902b8b11c8ddb84b3829a0122aad8418719ebdf. 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/BK4DA2215246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27be1dc59d5e11563743792bb4aa6c2bcc4543930165efc0cfeb54f121b51b14. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/BK4DA2307155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44bddfcb93d1b8f263a4fd64adc922b5ab473f3c874a5102c5f19c79044cb509. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/BK4DA2320133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9c87a0329461478cf11aeec720090b3b01b198f999063c3f81f34017f627be8. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/BK4DA2324174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18ce17b5bb91d236a6ba39d56b4f46dd22026d2426fe1eaf7542456a6e1e9bce. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/BK4DA2458573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76ec69a7b72469a2362eaec699adc1fb35149e8af78349032a148dad4190122b. 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/BK4DA2464009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79075e0faa5d67fc60fbb0895be1afd0d768f096173466aa47a3715d55854486. 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/BK4DA2501554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb25ded7e345b5aa1bdefcd78cc8b2d04182a437c5bf2cdee2dcc47fedac17fd4. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/BK4DA2503971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30c043feecf2238a92650bddd528fb30da0f0b37e092d55060e9e5f02ca5f4ea. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZNJV2546510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3522dd8e38de501d9ce52b80659dbd06123b8b824f314d4d27f3b30f99bef338. 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/QZFZ62580090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6228c4a1a51689d9806b898c6e444315bfbc9f3a306850ce4e9b60c7436e599b. Chain 2 (Bitcoin): anchored in block 960170 (2026-07-29T23:52:38Z), 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/QZYFZ2459758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x723f03ea261ce098d68f959542b90dbe4b6a80c489590872f3eaf1f6899a5115. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/QZYFZ2360525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1570bc61abcfcf9df647306d65893af95983662a38407d1dfeba11a1187a9522. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/QZW9M2464196.