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 0x8d1197f6c13b0ea38966d7703ad057a56bea7fbe279a9c038b995a5441503df4. 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/c151b7a5-8ab1-4f5b-ae81-a853db5ee530.json and https://artists.proofprofile.net/proofs/artist/c151b7a5-8ab1-4f5b-ae81-a853db5ee530.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 0x5eb1ed70aa7fb2417c7d7fecd5b0d45e31981fec6cd274169467059e25ae58a8. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZNJY2252569.
Barreira (Quando O Povo De Deus Passou Para Tomar Jericó)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf03859564fa722d57afa9c4aa363ba366d72d69bfeea0c02fc19e42f0544176. 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/QZNJY2252575.
Ele Está Aqui, Ele É Jeová, É o Anjo do Movimento / Fica Ligado Que Ele Vai Te Tocar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66440be659d6849b59ccb19a17d07246de7b60c428e0c03163070b78238e4f0e. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/QZNJY2252576.
A Grande Vitória: Contempla Esse Varão Que Chegou Agora
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4db157012ca2c85303d9de600582fe2e4fc09c2def4c9275bf5fa6d5b0d41005. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T13:59:09Z), 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/QZNJW2203102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c9dba2228c6fd16acdfe3285b31133d92e1c9bc495db6be3438ce4ee8d008e5. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZNJW2203103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc03039a5b2b462de6c759fa337d20486f21ec8abb403b89473881b4489b15f8. Chain 2 (Bitcoin): anchored in block 958864 (2026-07-20T13:06:45Z), 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/QZNJW2203104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ff5d00f74f437ed3d1b093d7de3dd9923c3c5f242437c76fb860f5dbc428e15. Chain 2 (Bitcoin): anchored in block 957522 (2026-07-11T04:46:56Z), 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/QZNJW2203105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60dce3e449ee2adcdb1be5949d237c52212c806752284c1b4a276c6f993dfd85. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/QZNJW2204290.
O Senhor é Varão de Guerra / Ele é Valente na Batalha / Mergulha Nessas Águas
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ac742e744c3f1242abfa4c3e6fc7be21765ce54bc3bea5406f01fb20f1fcf66. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QZNJW2213368.
É Gostoso Demais / Mistério de Deus / Laço do Passarinheiro / Deixa Queimar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fca2c8e23a67356c670b75a52d563caeee908cc602e630ff875e96a6dbd5552. Chain 2 (Bitcoin): anchored in block 959088 (2026-07-22T04:51:30Z), 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/QZNJW2221728.
A Ordem É pra Marchar / Vai Dando Glória / Ele É Valente na Batalha - Pout pourri de fogo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe54a3db2b0bfbcbdbc9dd60c879f41bebab59134bae5733a5e7e21d3e3fa8f4a. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/QZNJW2228341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc5d6dd3e5c87f50f1b3829ac5205aa82ce656e3187e429027d83dd0828e59c0. Chain 2 (Bitcoin): anchored in block 957522 (2026-07-11T04:46:56Z), 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/QMFME1533854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fb54034dc4872f3802e3cd13a6c1f48973719ef3e492b3782bf8aca639936dd. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QMFME1533858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dc23b9acf62ae91abcec73f5be546c563906c2b2bed5a56ff33a680895e1dac. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), 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/QMFME1533859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b0532fb5839764884867747d7e2a2cf642aa7a12c03e86851192fa178e9a3eb. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/QMFME1533861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x019fd19ed96f96ade4d575828528ad034927d7fb895b7bce47d74076113779a8. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QMFME1562776.