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 0x3e3430136211029f5badc1555f283d0df17db823d13b6431be1ce25a27b381fd. 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/1c184c81-596b-4a95-8b89-7e071922931c.json and https://artists.proofprofile.net/proofs/artist/1c184c81-596b-4a95-8b89-7e071922931c.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 0x585fa84b4395c70d979187ea575da4afcd543b7e230d59c41dd11052c484f61a. 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/QZPLR2228592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3a97cdef0281c6079bd31cb89f840dd1196919dbedb29cf9bf6919c7b718824. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/QZNWZ2285367.
MINISTERIO COLUNNA DE FUEGO//FIESTA DEL SEÑOR
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x812b3ad03c9c80916631a40834b68f48846703a26f547f950c774317bfadf7f1. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:28:00Z), 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/QZPLR2228658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f85a9def98cdd943a66f3c9e293afa3cec5bd64179cb367e71b5fd9c123c67f. 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/QZPLR2248009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1db84266b6b4d59cadbc9925342d20456e5ce4eefcfbe2ef0968e1e840fdb493. 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/QZPLR2233570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad63601dfe4918ef1b2d20c8eddb28a4737a62030d001ff7495e5b8380c74187. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QZPLR2231789.
TRIUNFO DE LA FE//LOS QUE ESPERAN EN JHEOVA
TRIUNFO DE LA FE//LOS QUE CONFIAN EN JHEOVA
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4000990fb254c8807cc2da76ccfb64164343eedb3243a38bd704b8c65637c03. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:50:21Z), 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/QZPLR2293183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a900107f3e146ac6fd6b1e54fa22066d65cb87c19dc1896d6bdf840022f9dc6. 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/QZPLR2262988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6e0ab97633a474db7a6b531f825f7d575e998979f3f8d14aaedbbae5fb73462. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T18:30:33Z), 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/QZPLR2262987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd404e5ad8d49ec0b442f45f0dd72264d3e350aa88f108323600dcabde8a20661. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/QZPLS2206701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fd46967a2120ed7f1a2f56129ff7810b6f5f5aedda0c6547c7a233e94045e6a. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T09:43:18Z), 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/QZPLS2205605.
GUERRERO DE LA TRIBU DE JUDA//DE TODO CORAZON
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x220a49769f9f97eee216446b7c7ed83c66ef5f6c4edefb12b0c0272d65e13fc4. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZPLS2216915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1444fe5c24293f1b6f1dda6138670354e62ae6abd4f8200dadfae9aeaefc28ae. 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/QZPLS2216658.
GUERRERO DE LA TRIBU DE JUDA//NO PUEDO VIVIR SIN TU PRESENCIA
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2b8f0a8c7688854732e38b91443b3257e26f2050a3daae6266646dd793c510e. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/QZPLS2216919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc2caa7473a722f376ed1f5802fe89f6efecfc545a8f1cf0795d85838cc1a151. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:29:09Z), 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/QZPLS2216916.
VILMA TOVAR//ATI HO JEHOVA LEVANTARE MI ALMA
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9422182b25def8ea54daabf0818aed7dd07705d6809fa6a8851a9a23755450b. 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/QZRP42209183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb53dd84e940dc49cf509fec15bcc979731f84df00b8108a98db8cdc4aa6d19d1. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QZPLS2272734.
GUERRERO DE LA TRIBU DE JUDA//AL MAS PERDIDAS
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe17cfb3458875a64b548d826a8dc696aef66118b2bf90704ae09a1de69e892f7. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T10:27:42Z), 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/QZPLS2269555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8edae4f024edaf6523754f89f976755b38117273626f95e07c57d510c97904ce. 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/QZPLS2272736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc568a384c312e1090248f97e02d23d8601999ad8863b3fedb439be7b0ac27ea. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/QZPLS2271336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e73745547c8ddd72b998de6c01dd1cf277f82ad8dd4559ec7a4ec9bcac304fd. Chain 2 (Bitcoin): anchored in block 958514 (2026-07-18T06:54:37Z), 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/QZPLS2272733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4442f837bd5ae15289421c1d5b34e8f9dab6bed9258dbd200f69beacb5189361. 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/QZPLS2272735.
VILMA TOVAR//SI TU SUPIERAS QUIEN JESUCRUSTO
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x308619f9a5abcb662f3cca96798ebe71b7ea20e007e7c0d790edbb71cd69065a. 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/QZPLS2271339.
ESPERANZA A LA LUZ//TODO RODIA SE DOBLARA
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15fb233a5146ef0a8143d6ce836f4563058162caf3414928d6f94d2ad95eb9a7. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QZPLS2271334.
VILMA TOVAR//AQUI ME TIENES EN TUS MANOS
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b6ee391627063a1e3685b65dc3bff8c7cdf401b298208c2e61968fc5fbda081. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/QZRP42207807.