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 0xef1a7e6238eae2bceebb14b46837c47703cb1f092cc9d63801766a2d9c1ff3c0. 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/ed6e4d25-3cef-4198-95ed-21f60adb056e.json and https://artists.proofprofile.net/proofs/artist/ed6e4d25-3cef-4198-95ed-21f60adb056e.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 0x8dcf00fde97757def852183cd23b384e1eeb8639eb965c4b2806c669a692a2e7. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T17:36:54Z), 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/ARHXW2400532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2306142e694f6107d9e267a5c67a55c0dd6a08f59e6ea1584a7d73c06309456. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:11:26Z), 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/ARTWQ2000184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17bd98cd0816d99309bd42a25da52f787eeee108fe71c2717a3c115aa485fe3b. 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/QZ22B3000872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x656f02f661d700a5069fb1a2edaf78577e14474fe42660b2e655a83a6e7908e0. 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/QZ22B3000874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a97c489d1283b3caca038c630305b42f71a4de362b4c2b69730792f48bd9dc3. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/QZ22B3000878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29fa10fa4e3df6410ad97270fddeb254b8a0c6f42757293d1242db982788a4e6. 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/ARFQW1400127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabb76423394760f88a02dc97241f6966fb4c59e4ab6fd22d745b6b1cc2eb8ce5. 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/ARFQW1400128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55c3490dd6111a59f88cd89d7fbedb1dc6ffabc18b14de40fed548a653252304. 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/ARFQW1400129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7463cd91dc08652ab903142564c3f2af3704ebee502d7a1bf9cb7849a2b8bed. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/ARFQW1400130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15cf9bbd4804bff2f49252e9e6453b4f29f8c9e650a87b4743d93a1cdee3b37b. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T11:11:26Z), 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/ARFQW1400131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x352bf87816aa13fa5bc235deb6a12aeb628d89e22dc3681b6ea872fb5139a08f. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T01:35:24Z), 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/ARFQW1400134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa348a07f0c8c94232b58089005ad57dcdc0167bf28db9168fcfc260c43c3a6fe. 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/ARFQW1400139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67a426b1ab6ad1953724d5882dbfb23c0873800a7bd207d6698d02134228f366. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T15:22:50Z), 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/ARFQW1400140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ede0ea31870f1ec36d9bdca25f77f0801c682c8a4555d2f0014ca338c1d43ee. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/ARFQW1400141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55c3490dd6111a59f88cd89d7fbedb1dc6ffabc18b14de40fed548a653252304. 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/ARFQW1400129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad34b5a1401826eb4b6d6403d98c2fdb5f68a78860c48fa12a20af2db02df379. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T21:10:30Z), 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/ARFQW1400133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ede0ea31870f1ec36d9bdca25f77f0801c682c8a4555d2f0014ca338c1d43ee. 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/ARFQW1400141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff03b355b8c92505eac2c2f3ee3c5ee6102bfde8ef15f1b7a6045c0365595e57. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T18:28:14Z), 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/ARFQW1500249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f488d7341e584f10691cd31066da6dad455b83978949209f3449cbf0d67036d. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZ22B1862426.
Perfume De Tu Cuerpo - Amor Amor - Ella y Él Enamoraditos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82cbb6155624e87aa758aa6dbb6c57232eca975359ffa2b23bf27d6ceed83f70. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZNJZ2575906.