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 0xd0faf94da4ab0fbc6f714fc3a5b2030ee24be2cbdc604c1016c46d66a744f835. 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/8e32b925-0c7a-49ca-9595-7586221e7a47.json and https://artists.proofprofile.net/proofs/artist/8e32b925-0c7a-49ca-9595-7586221e7a47.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 0x99b654ad5fec3aadb2600c80e4295d9d686f601e69bd2e916de5b1d0d131e777. 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/QZNJX2451063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2ad3bccca7e10c903421eaaa8166e514534da40b044b41ec2d7dd7718ad1e88. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/QZNJX2451064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41be15f02c484b745c2d7d7308affd8b07549f8b4d5b405ab9e8052b8d1db029. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZNJX2451066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x287de268eb782826f59a9bb634984e36784e0d619602fc72c13a7acdac15a187. 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/QZNJX2451068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61c7d6e509ba73a473e19bf99a098f0596630c8d68adb0c611617d26edea881a. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QZNJX2451069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5763939beb10d387348f89809370e658b93480895d2cfa8079ca6b35ce3cb6d5. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZMEP2130616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44e706000f255945e82decc5fb5563596a25ca52653574fd69b987e634c602ad. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/QZMEP2130617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe00e136105ada7808b103b1952bfa55872b4f606a3295277d4026f9970da2cef. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/QZMEP2130618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a8f7eeae281910f1e4c517886ad4d2d7a9458401220969dfb9ea7cab3ab5dc3. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:06:27Z), 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/QZFZ32196627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bb54495d7647ac1acf35417386ae461c869336e1b5fc274f82b7f916831216c. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:07:01Z), 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/QZFZ32196629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf01013da228299782943259bbb86f0c20505ec857bbfb24ad1eb3157a3d80eda. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/QZFZ32196630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ef80a7c00d89dfbae9ad4684f4b4848e19997db28c04e3e07b1c2b37b6b086e. Chain 2 (Bitcoin): anchored in block 957650 (2026-07-12T04:18:57Z), 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/QZFZ32196634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8033d843f87737320de754a309ff770007701457a7a602d065662e7021c9856. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T21:09:42Z), 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/QZFZ32196636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9411a4b24d989a309dabf1395caf259bc325f8e8423beb5068d9d78b8720beae. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/QZFZ32196637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a13111278799457afd30d903eecaa971126b77d7ee3985e5b766c7c8164b550. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/QZPLS2164994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb99cfe297b87488808436a7764917e4940d118b1b2ddc4afdc57732c35a9a70c. 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/QZPLS2164997.
Hasta que dure el viaje, mi llamado tu propósito
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x788b03278bf3456a14f7c9d026a59641dbf555c79d8b1b259448eb1f776442c6. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/QZNWY2430266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4abfca7c0580e34d8669507e006850918503e86d8376d1829c377a3bd45d450. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:23:15Z), 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/QZNWY2430269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31090a1c3bd99c20fe955bd9532ab8a946dc2d49da41930dde169a4d592e8d0d. Chain 2 (Bitcoin): anchored in block 957741 (2026-07-12T18:30:59Z), 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/QZNWY2430270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x723055748695a5b7ac8621e9342b8ac7f74a11be5ccc37ff6c2300f7a0d87ac0. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZNWY2430271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb74799fd52e72e365a7361d42bb38194edde7f25dffd3d7d8108bb18011e7d85. 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/QZNWY2430272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95b41bfd7532157b39b44703bbc876d108b1fca5edb8d3436efcb7b74b4bf328. 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/QZNWY2430275.